/etc/logcheck/ignore.d.server/amavisd-new is in logcheck-database 1.3.17.
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 | ^\w{3} [ :[:digit:]]{11} [._[:alnum:]-]+ amavis\[[[:digit:]]+\]: \([-[:digit:]]+\) Passed (CLEAN|SPAM(MY)?),( LOCAL)?( \[(IPv6:)?[[:xdigit:].:]{3,39}\]){0,2} <[^>]*> -> <[^>]*>(,<[^>]*>)*,( quarantine: ([[:alnum:]]/)?spam-[-+[:alnum:]]+(\.gz)?,)?( Message-ID: <[^>]+>( \((added by[^)]+|sfid-[_[:xdigit:]]+)\))?,)?( Resent-Message-ID: <[^>]+>,)? mail_id: [-+[:alnum:]]+, Hits: (-?[.[:digit:]]*)+, size: [[:xdigit:]]+, queued_as: [[:xdigit:]]+( OK id=[-[:alnum:]]+)?, [[:digit:]]+ ms$
^\w{3} [ :[:digit:]]{11} [._[:alnum:]-]+ amavis\[[[:digit:]]+\]: \([-[:digit:]]+\) Passed (INFECTED \([-._[:alnum:]]+\)|BAD-HEADER),( \[(IPv6:)?[[:xdigit:].:]{3,39}\]){1,2} <[^>]*> -> <[^>]*>,( quarantine: ([[:alnum:]]/)?(virus|badh)-[-+[:alnum:]]+(\.gz)?,)?( Message-ID: <[^>]+>( \((added by[^)]+|sfid-[_[:xdigit:]]+)\))?,)?( Resent-Message-ID: <[^>]+>,)? mail_id: [-+[:alnum:]]+, Hits: (-?[.[:digit:]]*)+, size: [[:xdigit:]]+, queued_as: [[:xdigit:]]+( OK id=[-[:alnum:]]+)?, [[:digit:]]+ ms$
^\w{3} [ :[:digit:]]{11} [._[:alnum:]-]+ amavis\[[[:digit:]]+\]: \([-[:digit:]]+\) NOTICE: Not sending DSN in response to bulk mail from <[^.]*> containing [[:upper:] ]+, mail intentionally dropped$
^\w{3} [ :[:digit:]]{11} [._[:alnum:]-]+ amavis\[[[:digit:]]+\]: \([-[:digit:]]+\) INFO: unfolded [[:digit:]]+ illegal all-whitespace continuation lines$
^\w{3} [ :[:digit:]]{11} [._[:alnum:]-]+ amavis\[[[:digit:]]+\]: \([-[:digit:]]+\) WARN: address modified \((sender|recipient)\): <[^>]+> -> <[^>]+>$
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