| # SpamAssassin - DKIM rules |
| # |
| # Please don't modify this file as your changes will be overwritten with |
| # the next update. Use @@LOCAL_RULES_DIR@@/local.cf instead. |
| # See 'perldoc Mail::SpamAssassin::Conf' for details. |
| # |
| # <@LICENSE> |
| # Licensed to the Apache Software Foundation (ASF) under one or more |
| # contributor license agreements. See the NOTICE file distributed with |
| # this work for additional information regarding copyright ownership. |
| # The ASF licenses this file to you under the Apache License, Version 2.0 |
| # (the "License"); you may not use this file except in compliance with |
| # the License. You may obtain a copy of the License at: |
| # |
| # http://www.apache.org/licenses/LICENSE-2.0 |
| # |
| # Unless required by applicable law or agreed to in writing, software |
| # distributed under the License is distributed on an "AS IS" BASIS, |
| # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| # See the License for the specific language governing permissions and |
| # limitations under the License. |
| # </@LICENSE> |
| # |
| ########################################################################### |
| |
| # Requires the Mail::SpamAssassin::Plugin::DKIM plugin be loaded. |
| |
| ifplugin Mail::SpamAssassin::Plugin::DKIM |
| |
| full DKIM_SIGNED eval:check_dkim_signed() |
| full DKIM_VALID eval:check_dkim_valid() |
| full DKIM_VALID_AU eval:check_dkim_valid_author_sig() |
| full __DKIM_DEPENDABLE eval:check_dkim_dependable() |
| |
| header DKIM_ADSP_NXDOMAIN eval:check_dkim_adsp('N') |
| header DKIM_ADSP_DISCARD eval:check_dkim_adsp('D') |
| header DKIM_ADSP_ALL eval:check_dkim_adsp('A') |
| header DKIM_ADSP_CUSTOM_LOW eval:check_dkim_adsp('1') |
| header DKIM_ADSP_CUSTOM_MED eval:check_dkim_adsp('2') |
| header DKIM_ADSP_CUSTOM_HIGH eval:check_dkim_adsp('3') |
| |
| # Note: DKIM_SIGNED, DKIM_VALID and DKIM_VALID_AU are mainly informational |
| # rules, and can serve as a basis for meta rules; it is not difficult for a |
| # sender to cause hits on them or to prevent them from firing, so their score |
| # should be kept low. |
| tflags DKIM_SIGNED net |
| tflags DKIM_VALID net nice |
| tflags DKIM_VALID_AU net nice |
| tflags DKIM_ADSP_NXDOMAIN net |
| tflags DKIM_ADSP_DISCARD net |
| tflags DKIM_ADSP_ALL net |
| tflags DKIM_ADSP_CUSTOM_LOW net userconf |
| tflags DKIM_ADSP_CUSTOM_MED net userconf |
| tflags DKIM_ADSP_CUSTOM_HIGH net userconf |
| |
| describe DKIM_SIGNED Message has a DKIM or DK signature, not necessarily valid |
| describe DKIM_VALID Message has at least one valid DKIM or DK signature |
| describe DKIM_VALID_AU Message has a valid DKIM or DK signature from author's domain |
| describe __DKIM_DEPENDABLE A validation failure not attributable to truncation |
| |
| describe DKIM_ADSP_NXDOMAIN No valid author signature and domain not in DNS |
| describe DKIM_ADSP_DISCARD No valid author signature, domain signs all mail and suggests discarding the rest |
| describe DKIM_ADSP_ALL No valid author signature, domain signs all mail |
| describe DKIM_ADSP_CUSTOM_LOW No valid author signature, adsp_override is CUSTOM_LOW |
| describe DKIM_ADSP_CUSTOM_MED No valid author signature, adsp_override is CUSTOM_MED |
| describe DKIM_ADSP_CUSTOM_HIGH No valid author signature, adsp_override is CUSTOM_HIGH |
| |
| full __RESIGNER1 eval:check_dkim_valid('linkedin.com') |
| full __RESIGNER2 eval:check_dkim_valid('googlegroups.com','yahoogroups.com','yahoogroups.de') |
| tflags __RESIGNER1 net |
| tflags __RESIGNER2 net |
| meta __VIA_RESIGNER __RESIGNER1 || __RESIGNER2 |
| describe __VIA_RESIGNER Mail through a popular signing remailer |
| |
| meta NML_ADSP_CUSTOM_LOW DKIM_ADSP_CUSTOM_LOW && !__VIA_ML && !__VIA_RESIGNER |
| meta NML_ADSP_CUSTOM_MED DKIM_ADSP_CUSTOM_MED && !__VIA_ML && !__VIA_RESIGNER |
| meta NML_ADSP_CUSTOM_HIGH DKIM_ADSP_CUSTOM_HIGH && !__VIA_ML && !__VIA_RESIGNER |
| describe NML_ADSP_CUSTOM_LOW ADSP custom_low hit, and not from a mailing list |
| describe NML_ADSP_CUSTOM_MED ADSP custom_med hit, and not from a mailing list |
| describe NML_ADSP_CUSTOM_HIGH ADSP custom_high hit, and not from a mailing list |
| |
| # old, declared for compatibility with pre-3.3, should have scores 0 |
| |
| full DKIM_VERIFIED eval:check_dkim_valid() |
| header DKIM_POLICY_TESTING eval:check_dkim_testing() |
| header DKIM_POLICY_SIGNSOME eval:check_dkim_signsome() |
| header DKIM_POLICY_SIGNALL eval:check_dkim_signall() |
| tflags DKIM_VERIFIED net nice |
| tflags DKIM_POLICY_SIGNSOME net nice |
| tflags DKIM_POLICY_SIGNALL net nice |
| tflags DKIM_POLICY_TESTING net nice |
| |
| endif # Mail::SpamAssassin::Plugin::DKIM |
