/usr/share/spamassassin/20_meta_tests.cf is in spamassassin 3.4.1-8build1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 | # SpamAssassin rules file: meta tests
#
# 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.
#
# Add meta tests which cover *both* headers and body here.
#
# Note: body tests are run with long lines, so be sure to limit the
# size of searches; use /.{0,30}/ instead of /.*/ to avoid huge
# search times.
#
# <@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>
#
###########################################################################
require_version @@VERSION@@
# some tests that will trigger FPs on ISO-2022-JP mails.
body __ISO_2022_JP_DELIM /\e\$B/
meta UPPERCASE_50_75 (!__ISO_2022_JP_DELIM && __UPPERCASE_50_75)
describe UPPERCASE_50_75 message body is 50-75% uppercase
meta UPPERCASE_75_100 (!__ISO_2022_JP_DELIM && __UPPERCASE_75_100)
describe UPPERCASE_75_100 message body is 75-100% uppercase
header __SANE_MSGID MESSAGEID =~ /^<[^<>\\ \t\n\r\x0b\x80-\xff]+\@[^<>\\ \t\n\r\x0b\x80-\xff]+>\s*$/m
header __HAS_MSGID MESSAGEID =~ /\S/
header __MSGID_COMMENT MESSAGEID =~ /\(.*\)/m
meta INVALID_MSGID __HAS_MSGID && !(__SANE_MSGID || __MSGID_COMMENT)
describe INVALID_MSGID Message-Id is not valid, according to RFC 2822
header __MOZILLA_MUA X-Mailer =~ /\bMozilla\b/
header __MOZILLA_MSGID MESSAGEID =~ /^<[A-F\d]{8}\.[A-F1-9][A-F\d]{0,7}\@\S+>$/m
meta FORGED_MUA_MOZILLA (__MOZILLA_MUA && !__UNUSABLE_MSGID && !__MOZILLA_MSGID)
describe FORGED_MUA_MOZILLA Forged mail pretending to be from Mozilla
header __PC_RND_HEADER ALL =~ /%RA?ND(?:OM)?(?:_|\b|[A-Z]{3})/i
rawbody __PC_RND_RAWBODY /%RA?ND(?:OM)?(?:_|\b|[A-Z]{3})/i
meta PERCENT_RANDOM (__PC_RND_HEADER || __PC_RND_RAWBODY)
describe PERCENT_RANDOM Message has a random macro in it
# __MIME_ATTACHMENT defined in 20_html_tests.cf
body __NONEMPTY_BODY /\S/
meta EMPTY_MESSAGE !__MIME_ATTACHMENT && !__NONEMPTY_BODY
describe EMPTY_MESSAGE Message appears to have no textual parts and no Subject: text
meta NO_HEADERS_MESSAGE (MISSING_DATE && MISSING_HEADERS && NO_RECEIVED && NO_RELAYS && MISSING_MID)
describe NO_HEADERS_MESSAGE Message appears to be missing most RFC-822 headers
###########################################################################
ifplugin Mail::SpamAssassin::Plugin::MIMEEval
body __UPPERCASE_25_50 eval:check_for_uppercase('25', '50')
body __UPPERCASE_50_75 eval:check_for_uppercase('50', '75')
body __UPPERCASE_75_100 eval:check_for_uppercase('75', '100')
endif
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