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annotate ChangeLog @ 181:cb5c0d7ec451

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embedded dcc filtering
author carl
date Sat, 06 Oct 2007 12:30:48 -0700
parents 8b86a894514d
children 0e15a805d295
Ignore whitespace changes - Everywhere: Within whitespace: At end of lines:
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98
91c27c00048f tokenizer errors now go thru syslog to be visible during config file reloads in normal operation
carl
parents: 92
diff changeset
1 $Id$
91c27c00048f tokenizer errors now go thru syslog to be visible during config file reloads in normal operation
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2
179
8b86a894514d embedded dcc filtering
carl
parents: 178
diff changeset
3 6.11 2007-10-06
178
d6531c702be3 embedded dcc filtering
carl
parents: 177
diff changeset
4 Add DCC filtering via dccifd. Drop to 60 seconds the time we will
d6531c702be3 embedded dcc filtering
carl
parents: 177
diff changeset
5 keep idle smtp verify sockets around. This needs to be about half
d6531c702be3 embedded dcc filtering
carl
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diff changeset
6 the value of confTO_COMMAND configured on the verify targets.
d6531c702be3 embedded dcc filtering
carl
parents: 177
diff changeset
7 Fix potential race condition or buffer overflow caused by static
d6531c702be3 embedded dcc filtering
carl
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diff changeset
8 buffer referenced by multiple threads.
177
a4d313c2460b start embedded dcc filtering
carl
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9
174
da0c41b9f672 don't whitelist addresses with embedded spaces
carl
parents: 173
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10 6.10 2007-09-23
da0c41b9f672 don't whitelist addresses with embedded spaces
carl
parents: 173
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11 Don't whitelist addresses with embedded blanks, or the empty
176
4ec928b24bab allow manual whitelisting with stamp 1 to remove a whitelist entry
carl
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12 path. Allow manual removal of auto whitelist entries.
174
da0c41b9f672 don't whitelist addresses with embedded spaces
carl
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13
173
83fe0be032c1 fix leak, update timestamps when receiving auto-whitelisted sender
carl
parents: 172
diff changeset
14 6.09 2007-09-06
83fe0be032c1 fix leak, update timestamps when receiving auto-whitelisted sender
carl
parents: 172
diff changeset
15 Fix memory leak in auto-whitelisting code. Update auto-whitelist
83fe0be032c1 fix leak, update timestamps when receiving auto-whitelisted sender
carl
parents: 172
diff changeset
16 timestamps when receiving mail from auto-whitelisted senders.
83fe0be032c1 fix leak, update timestamps when receiving auto-whitelisted sender
carl
parents: 172
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17
172
d3189495ec68 don't do generic rdns filtering on whitelisted recipients
carl
parents: 169
diff changeset
18 6.08 2007-08-30
d3189495ec68 don't do generic rdns filtering on whitelisted recipients
carl
parents: 169
diff changeset
19 Don't do generic reverse dns filtering on authenticated connections.
d3189495ec68 don't do generic rdns filtering on whitelisted recipients
carl
parents: 169
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20
168
6bac960af6b4 add generic reverse dns filtering regex
carl
parents: 167
diff changeset
21 6.07 2007-08-30
6bac960af6b4 add generic reverse dns filtering regex
carl
parents: 167
diff changeset
22 Add generic reverse dns filtering with regular expression.
169
44021d570958 fix pre/post scripts in rpm spec file
carl
parents: 168
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23 Fix pre/post scripts in the rpm spec file.
168
6bac960af6b4 add generic reverse dns filtering regex
carl
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24
6bac960af6b4 add generic reverse dns filtering regex
carl
parents: 167
diff changeset
25 6.06 2007-08-27
167
9b129ed78d7d actually use spamassassin result, allow build without spam assassin, only call it if some recipient needs it.
carl
parents: 165
diff changeset
26 Fix bug that effectively disabled spamassassin filtering. Improve
9b129ed78d7d actually use spamassassin result, allow build without spam assassin, only call it if some recipient needs it.
carl
parents: 165
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27 spamassassin filtering documentation. Generate warning if the
9b129ed78d7d actually use spamassassin result, allow build without spam assassin, only call it if some recipient needs it.
carl
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28 config file specifies spam assassin filtering, but spamc is not
9b129ed78d7d actually use spamassassin result, allow build without spam assassin, only call it if some recipient needs it.
carl
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29 found by autoconf.
9b129ed78d7d actually use spamassassin result, allow build without spam assassin, only call it if some recipient needs it.
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30
168
6bac960af6b4 add generic reverse dns filtering regex
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31 6.05 2007-08-26
165
bf828f785407 fix unitialized variable
carl
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32 Fix unitialized variable in my spamassassin code.
bf828f785407 fix unitialized variable
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33
168
6bac960af6b4 add generic reverse dns filtering regex
carl
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34 6.04 2007-08-26
165
bf828f785407 fix unitialized variable
carl
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35 Add spamassassin integration via spamc, code from spamass-milter.
bf828f785407 fix unitialized variable
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36
162
c4bce911c276 don't add auto whitelist for A to A
carl
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37 6.03 2007-07-14
c4bce911c276 don't add auto whitelist for A to A
carl
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38 Don't add auto whitelist entries for our own domains.
c4bce911c276 don't add auto whitelist for A to A
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39
160
b3ed72ee6564 allow manual updates to auto whitelist files
carl
parents: 152
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40 6.02 2007-07-10
b3ed72ee6564 allow manual updates to auto whitelist files
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parents: 152
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41 Allow manual updates to the auto whitelisting files, mainly for
b3ed72ee6564 allow manual updates to auto whitelist files
carl
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42 scp or rsync synchronization between primary and backup mx
b3ed72ee6564 allow manual updates to auto whitelist files
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43 systems.
b3ed72ee6564 allow manual updates to auto whitelist files
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44
152
c7fc218686f5 gpl3, block mail to recipients that cannot reply
carl
parents: 151
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45 6.01 2007-07-07
c7fc218686f5 gpl3, block mail to recipients that cannot reply
carl
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46 GPL3. Block mail to recipients that cannot reply. Start auto
c7fc218686f5 gpl3, block mail to recipients that cannot reply
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47 whitelisting.
c7fc218686f5 gpl3, block mail to recipients that cannot reply
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48
c7fc218686f5 gpl3, block mail to recipients that cannot reply
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49 5.30 2007-06-09
c7fc218686f5 gpl3, block mail to recipients that cannot reply
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50 Selinux fix - redirect stdout for useradd to make selinux happy.
c7fc218686f5 gpl3, block mail to recipients that cannot reply
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parents: 151
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51
151
0e8ec3c483ce limit dns resolver timeouts and retry interval
carl
parents: 150
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52 5.29 2007-03-27
150
a23ef169d322 limit dns resolver timeouts and retry interval
carl
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53 Limit dns resolver to two retries five seconds apart.
a23ef169d322 limit dns resolver timeouts and retry interval
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54
149
9581f6e62574 switch to second context wins in all cases
carl
parents: 148
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55 5.28 2007-02-19
9581f6e62574 switch to second context wins in all cases
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56 Change the conflict resolution algorithm to "second one wins" if we
9581f6e62574 switch to second context wins in all cases
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57 have two contexts that both define env_to user@. Update ICANN tld
9581f6e62574 switch to second context wins in all cases
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58 list.
9581f6e62574 switch to second context wins in all cases
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59
148
9330b8d6a56b add documentation fixes, allow env_from target of inherit
carl
parents: 147
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60 5.27 2007-01-30
9330b8d6a56b add documentation fixes, allow env_from target of inherit
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61 Allow 'inherit' as an env_from target. Documentation cleanup
9330b8d6a56b add documentation fixes, allow env_from target of inherit
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62 from G.W. Haywood.
9330b8d6a56b add documentation fixes, allow env_from target of inherit
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63
147
812c80305f26 fix 5.23 bug and add fsa debug logging
carl
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64 5.26 2006-12-04
812c80305f26 fix 5.23 bug and add fsa debug logging
carl
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65 Fix bug in content filtering introduced in 5.23 that prevented
812c80305f26 fix 5.23 bug and add fsa debug logging
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66 seeing any host names in the body.
812c80305f26 fix 5.23 bug and add fsa debug logging
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67
145
9b9bab1d3c21 dump effective dnsbl_list with -c switch
carl
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68 5.25 2006-10-15
9b9bab1d3c21 dump effective dnsbl_list with -c switch
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69 DNSBL lists are inherited, so dump the effective list with the
9b9bab1d3c21 dump effective dnsbl_list with -c switch
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70 -c switch.
9b9bab1d3c21 dump effective dnsbl_list with -c switch
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71
144
31ff00ea6bfb allow parent/child to share a fully qualified env_to address
carl
parents: 143
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72 5.24 2006-10-15
31ff00ea6bfb allow parent/child to share a fully qualified env_to address
carl
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73 Allow child and parent context to specify the same fully qualified
31ff00ea6bfb allow parent/child to share a fully qualified env_to address
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74 env_to address. Only dump the rate limit for the default context
31ff00ea6bfb allow parent/child to share a fully qualified env_to address
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75 with -c switch.
31ff00ea6bfb allow parent/child to share a fully qualified env_to address
carl
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76
143
ecb40aa3eaa5 require two periods for ip addresses
carl
parents: 140
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77 5.23 2006-10-10
ecb40aa3eaa5 require two periods for ip addresses
carl
parents: 140
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78 Require two periods in ip addresses.
ecb40aa3eaa5 require two periods for ip addresses
carl
parents: 140
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79
140
4028de9b46dd cleanup smtp rate limit code
carl
parents: 136
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80 5.22 2006-09-27
4028de9b46dd cleanup smtp rate limit code
carl
parents: 136
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81 Change syntax for default rate limit. Improve hourly reset of
4028de9b46dd cleanup smtp rate limit code
carl
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82 limits. Warning for rate limits in non default contexts to allow
4028de9b46dd cleanup smtp rate limit code
carl
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83 nesting of client configurations.
4028de9b46dd cleanup smtp rate limit code
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84
136
f4746d8a12a3 add smtp auth rate limits
carl
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85 5.21 2006-09-26
f4746d8a12a3 add smtp auth rate limits
carl
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86 Add SMTP AUTH recipient rate limits, to help throttle infected
f4746d8a12a3 add smtp auth rate limits
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87 client machines and accounts with weak cracked passwords.
f4746d8a12a3 add smtp auth rate limits
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88
134
f9917ce924a3 all dns lookups fully qualified, my_read() bug fix
carl
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89 5.20 2006-08-02
f9917ce924a3 all dns lookups fully qualified, my_read() bug fix
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90 Fully qualify all dns lookups. Fix my_read() bug. Try to convert
f9917ce924a3 all dns lookups fully qualified, my_read() bug fix
carl
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91 names that might be ip addresses via inet_aton before doing dns
f9917ce924a3 all dns lookups fully qualified, my_read() bug fix
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92 lookups.
f9917ce924a3 all dns lookups fully qualified, my_read() bug fix
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93
131
df355d117199 uribl lookups fully qualified; allow two component host names
carl
parents: 128
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94 5.19 2006-08-01
df355d117199 uribl lookups fully qualified; allow two component host names
carl
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95 Bug fix - add trailing dot to uribl dns lookups to make them fully
df355d117199 uribl lookups fully qualified; allow two component host names
carl
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96 qualified. Check host names with only two components, since
df355d117199 uribl lookups fully qualified; allow two component host names
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97 spammers are now using bare http://domain.tld references.
133
b8ce1b31237d uribl lookups fully qualified; allow two component host names
carl
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98 Spec file now creates an rpm that properly creates the dnsbl user.
131
df355d117199 uribl lookups fully qualified; allow two component host names
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parents: 128
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99
128
9ab51896447f don't do uribl lookups on rfc1918 address space
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100 5.18 2006-04-27
127
2b1a4701e856 sendmail no longer guarantees <> wrapper on envelopes
carl
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101 Bug fix - newer sendmail versions don't guarantee envelope addresses
2b1a4701e856 sendmail no longer guarantees <> wrapper on envelopes
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102 enclosed in <> wrapper.
2b1a4701e856 sendmail no longer guarantees <> wrapper on envelopes
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103
2b1a4701e856 sendmail no longer guarantees <> wrapper on envelopes
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104 Document backscatter prevention configuration for systems that are
2b1a4701e856 sendmail no longer guarantees <> wrapper on envelopes
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105 used to mainly spam filter and then forward to mail to the internal
2b1a4701e856 sendmail no longer guarantees <> wrapper on envelopes
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106 server.
2b1a4701e856 sendmail no longer guarantees <> wrapper on envelopes
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107
128
9ab51896447f don't do uribl lookups on rfc1918 address space
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108 Never ask uribl blacklists about rfc1918 address space.
9ab51896447f don't do uribl lookups on rfc1918 address space
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109
126
05ae49d37896 don't do dnsbl lookups on rfc1918 address space
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110 5.17 2006-03-25
127
2b1a4701e856 sendmail no longer guarantees <> wrapper on envelopes
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111 Never ask dns blacklists about rfc1918 address space.
126
05ae49d37896 don't do dnsbl lookups on rfc1918 address space
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112
125
8b1562482b29 put hostname in smtp message for uribl style lookups
carl
parents: 123
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113 5.16 2006-03-16
127
2b1a4701e856 sendmail no longer guarantees <> wrapper on envelopes
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114 Bug fix - the smtp error message for uribl filtering needs to
125
8b1562482b29 put hostname in smtp message for uribl style lookups
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115 reference the host name, not the ip address.
8b1562482b29 put hostname in smtp message for uribl style lookups
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116
123
ecd97e7eb1f0 properly return error code with reject reason
carl
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117 5.15 2006-03-15
127
2b1a4701e856 sendmail no longer guarantees <> wrapper on envelopes
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118 Bug fix - we failed to properly set the return code to indicate the
123
ecd97e7eb1f0 properly return error code with reject reason
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119 reason when rejecting mail for content filtering.
ecd97e7eb1f0 properly return error code with reject reason
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120
122
e8971c595845 fix typo in multi.surbl.org name
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121 5.14 2006-03-13
127
2b1a4701e856 sendmail no longer guarantees <> wrapper on envelopes
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122 Fix a typo in the default config file and documentation for using
122
e8971c595845 fix typo in multi.surbl.org name
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123 multi.surbl.org
e8971c595845 fix typo in multi.surbl.org name
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124
117
aa07452e641b uribl patch from Jeff Evans <jeffe@tricab.com>
carl
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125 5.13 2006-03-12
aa07452e641b uribl patch from Jeff Evans <jeffe@tricab.com>
carl
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126 patch from Jeff Evans <jeffe@tricab.com>
121
e2506138561b uribl patch from Jeff Evans <jeffe@tricab.com>
carl
parents: 117
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127 add SURBL/URIBL lookups, remove trailing dots from hostnames,
e2506138561b uribl patch from Jeff Evans <jeffe@tricab.com>
carl
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128 allow ip address literals as hostnames.
e2506138561b uribl patch from Jeff Evans <jeffe@tricab.com>
carl
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129 add configuration for surbl/uribl list and reject message
e2506138561b uribl patch from Jeff Evans <jeffe@tricab.com>
carl
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130
115
07e5d4721213 use larger resolver buffer
carl
parents: 113
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131 5.12 2006-01-08
07e5d4721213 use larger resolver buffer
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132 Use larger resolver buffer to accomodate spammers with many name
07e5d4721213 use larger resolver buffer
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133 servers. A current example is life-all.com which needs to retry in
07e5d4721213 use larger resolver buffer
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134 tcp mode to fetch the 1444 byte response.
07e5d4721213 use larger resolver buffer
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135
116
0094678a16d0 update all systems from tarball, make chkconfig creates dnsbl user if needed
carl
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136 'make chkconfig' now creates the dnsbl user if it does not exist.
0094678a16d0 update all systems from tarball, make chkconfig creates dnsbl user if needed
carl
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137
113
a893afee4b80 move to autoconf/automake/docbook
carl
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138 5.11 2005-12-20
a893afee4b80 move to autoconf/automake/docbook
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139 switch to autoconf/automake/docbook
a893afee4b80 move to autoconf/automake/docbook
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140
102
d9c64bafbf60 fix compile error on fc3
carl
parents: 101
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141 5.10 2005-10-16
d9c64bafbf60 fix compile error on fc3
carl
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142 Fix a compile error on Fedora Core 3.
d9c64bafbf60 fix compile error on fc3
carl
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143 Discovered by Nigel Horne <njh@bandsman.co.uk>
d9c64bafbf60 fix compile error on fc3
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144
101
6ac7ba4a8312 fix <> passed as <<>> to verification hosts
carl
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145 5.9 2005-09-26
6ac7ba4a8312 fix <> passed as <<>> to verification hosts
carl
parents: 100
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146 Fix a bug with empty return paths passed to the verification code.
6ac7ba4a8312 fix <> passed as <<>> to verification hosts
carl
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147 That resulted in 'MAIL FROM:<<>>' being sent to the verification
6ac7ba4a8312 fix <> passed as <<>> to verification hosts
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148 mail server.
6ac7ba4a8312 fix <> passed as <<>> to verification hosts
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149
100
63e8633abc34 allow empty env_to at global context to remove all restrictions on child contexts
carl
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150 5.8 2005-09-25
63e8633abc34 allow empty env_to at global context to remove all restrictions on child contexts
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151 Allow empty env_to at global context level to remove restrictions
63e8633abc34 allow empty env_to at global context to remove all restrictions on child contexts
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152 on env_to values in child contexts.
63e8633abc34 allow empty env_to at global context to remove all restrictions on child contexts
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153
99
f8963ddf7143 failed to return a value from parse_verify()
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154 5.7 2005-09-23
f8963ddf7143 failed to return a value from parse_verify()
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155 Failed to return a value from parse_verify() which caused failures
f8963ddf7143 failed to return a value from parse_verify()
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156 to load the configuration.
f8963ddf7143 failed to return a value from parse_verify()
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157
98
91c27c00048f tokenizer errors now go thru syslog to be visible during config file reloads in normal operation
carl
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158 5.6 2005-09-22
91c27c00048f tokenizer errors now go thru syslog to be visible during config file reloads in normal operation
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159 Tokenizer errors now go thru the syslog code, so they are visible
91c27c00048f tokenizer errors now go thru syslog to be visible during config file reloads in normal operation
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160 when generated during config file reloads during normal operation.
91c27c00048f tokenizer errors now go thru syslog to be visible during config file reloads in normal operation
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161
91c27c00048f tokenizer errors now go thru syslog to be visible during config file reloads in normal operation
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162 5.5 2005-09-21
91c27c00048f tokenizer errors now go thru syslog to be visible during config file reloads in normal operation
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163 Cleanup debug logging. Verify from/to pairs now remembers the last
91c27c00048f tokenizer errors now go thru syslog to be visible during config file reloads in normal operation
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164 from value sent to the remote server to prevent unnecessary rset
91c27c00048f tokenizer errors now go thru syslog to be visible during config file reloads in normal operation
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165 commands.
91c27c00048f tokenizer errors now go thru syslog to be visible during config file reloads in normal operation
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166
91c27c00048f tokenizer errors now go thru syslog to be visible during config file reloads in normal operation
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diff changeset
167 5.4 2005-09-18
91c27c00048f tokenizer errors now go thru syslog to be visible during config file reloads in normal operation
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168 Add verify statement to specify the smtp host to be used to verify
91c27c00048f tokenizer errors now go thru syslog to be visible during config file reloads in normal operation
carl
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169 envelope from / recipient pairs.
91c27c00048f tokenizer errors now go thru syslog to be visible during config file reloads in normal operation
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170
91c27c00048f tokenizer errors now go thru syslog to be visible during config file reloads in normal operation
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171 Authenticated clients are now exempt from all white/black listing
91c27c00048f tokenizer errors now go thru syslog to be visible during config file reloads in normal operation
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172 in addition to the dnsbl lookups.
91c27c00048f tokenizer errors now go thru syslog to be visible during config file reloads in normal operation
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173
91c27c00048f tokenizer errors now go thru syslog to be visible during config file reloads in normal operation
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174 dcc_to should not look at substitute mail_host. That is only used
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175 by dcc_from.
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176
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177 5.3 2005-08-07
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178 Properly quit if the config file has syntax errors on startup. Send
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179 mail to root if the config file needs to be reloaded since it was
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180 modified, but contains syntax errors. In this case, we continue to
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181 use the old configuration.
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182
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183 5.2 2005-08-02
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184 Patch from Stephen Johnson <stephen.johnson@arkansas.gov> fixing the
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185 lack of a default return value in CONTEXT::acceptable_content().
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186
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187 5.1 2005-07-20
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188 Add multiple syslog debug levels. Detect and silently remove
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189 duplicate DNSBL definitions. That allows us to accept mail to
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190 recipients in multiple domains that use the same blacklist and yet
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191 only check that blacklist once. This may happen when your config
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192 file directly includes as child contexts the config files used on
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193 your clients mail servers.
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194
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195 5.0 2005-07-16
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196 Major changes to the syntax of the config file. Content filtering
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197 is no longer a global mail server setting.
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198
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199 4.6 2005-04-02
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200 Fix enum compilation error on Fedora Core 3.
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201 Discovered by Nigel Horne <njh@bandsman.co.uk>
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202
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203 Remove bad html tag command from the default conf file. Spammers
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204 seem to have abandoned this.
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205
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206 Add toolbar.msn.click-url.com in hosts-ignore.conf. These are all
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207 commented, but you might want to uncomment them.
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208
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209 4.5 2005-01-22
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210 Add uuencode decoding for old style attachments.
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211
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212 4.4 2005-01-18
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213 Bug fix in forked process termination that left zombies.
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214
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215 4.3 2005-01-16
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216 Only keep 20% of the resolver sockets in the ready pool.
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217
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218 4.2 2005-01-08
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219 Use the separate resolver processes even if we don't have the
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220 resolver interfaces and need gethostbyname.
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221
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222 4.1 2005-01-06
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223 Use a local unix domain socket for the resolver process
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224 communication, rather than a tcp/ip socket.
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225
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226 4.0 2005-01-03
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227 Initialize the thread mutex objects early, before they are needed
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228 by possible calls to my_syslog.
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229
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230 Fork off a separate resolver listener process, so we can do multiple
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231 dns operations in parallel. For each simultaneous inbound email,
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232 we have a separate sendmail process, a milter thread, and a dns
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233 resolver process.
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234
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235 3.7 2004-10-28
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236 Added an 'ignore' command to the conf file, used to ignore some
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237 hosts that might end up on the SBL and otherwise trip the content
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238 scanning filter. In particular, many recent Microsoft Word
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239 documents contain the string www.5iantlavalamp.com which is
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240 associated with their smart tags stuff. That is currently hosted at
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241 216.168.224.70, which is shared with a site that ended up on the
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242 SBL.
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243
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244 3.6 2004-09-08
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245 Contributions from Dan Harkless <software@harkless.org>
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246 Better documentation for disabling the content filtering.
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247 Don't bother looking at the body text if we are not doing
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248 content filtering.
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249
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250 3.5 2004-07-17
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251 Extend the error message for content filtering when the NS record
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252 points to an ip address on the SBL. Include the original host name
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253 that referenced that NS name.
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254
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255
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256 3.4 2004-07-15
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257 Tokens with two consecutive periods cannot be ip addresses or host
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258 names.
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259
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260 Updated dnsbl.spec file for building rpms from John Gunkel.
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261
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262
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263 3.3 2004-07-09
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264 Drop root priviledges properly, including the group id.
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265
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266
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267 3.2 2004-07-09
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268
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269 Contributions from John Gunkel <jgunkel@palliser.ca>:
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270 Add .spec file for building rpms, contributed by John Gunkel
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271
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272 Changes to file layout to conform to RedHat/LSB standards.
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273
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274 Add some html (actually xml) tags used by Apple mac print
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275 subsystem that were tripping the html tag detector.
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276
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277 Help with changes required to allow dnsbl to drop root
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278 priviledges. Move the socket to /var/run/dnsbl/dnsbl.sock
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279
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280 Change parser to handle &#xnnn; obfuscated urls with charaters
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281 specified in hex.
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282
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283 Make bad_html tags more sensitive to binary tags, to reduce false
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284 positives in .zip or .tar.gz file attachments.
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285
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286 Add sendmail queueid to the dnsbl syslog messages.
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287
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288 Fix one place where host names were not forced to lower case.
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289 Discovered by Nigel Horne <njh@bandsman.co.uk>
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290
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291 Remove duplicate dns queries within the same smtp transaction from
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292 the body content filtering. This helps if the mail server does not
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293 have a nearby caching dns server.
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294
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295 Add host_soft_limit config keyword. Use only one of host_limit or
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296 host_soft_limit, since the last one wins. The host_limit is a hard
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297 upper limit on the number of host names in a message. The
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298 host_soft_limit allows unlimited host names, but only checks a
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299 random sample of them against the dnsbl.
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300
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301 The main thread has dropped root priviledges, but other threads
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302 are still running as root. This needs to be fixed.