/etc/logcheck/ignore.d.server/sendmail is in sendmail-base 8.14.4-4+deb7u1.
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 | ^\w{3} [ :0-9]{11} [._[:alnum:]-]+ (sendmail|sm-(mta|msp|que))\[[0-9]+\]: starting daemon
^\w{3} [ :0-9]{11} [._[:alnum:]-]+ (sendmail|sm-(mta|msp|que))\[[0-9]+\]: restarting
^\w{3} [ :0-9]{11} [._[:alnum:]-]+ (sendmail|sm-(mta|msp|que))\[[0-9]+\]: rejecting connections on daemon
^\w{3} [ :0-9]{11} [._[:alnum:]-]+ (sendmail|sm-(mta|msp|que))\[[0-9]+\]: accepting connections again for daemon
^\w{3} [ :0-9]{11} [._[:alnum:]-]+ (sendmail|sm-(mta|msp|que))\[[0-9]+\]: .* User unknown
^\w{3} [ :0-9]{11} [._[:alnum:]-]+ (sendmail|sm-(mta|msp|que))\[[0-9]+\]: alias database .* rebuilt
^\w{3} [ :0-9]{11} [._[:alnum:]-]+ (sendmail|sm-(mta|msp|que))\[[0-9]+\]: .* aliases, longest
^\w{3} [ :0-9]{11} [._[:alnum:]-]+ (sendmail|sm-(mta|msp|que))\[[0-9]+\]: .*: from=
^\w{3} [ :0-9]{11} [._[:alnum:]-]+ (sendmail|sm-(mta|msp|que))\[[0-9]+\]: .*: split:
^\w{3} [ :0-9]{11} [._[:alnum:]-]+ (sendmail|sm-(mta|msp|que))\[[0-9]+\]: .* lost input channel
^\w{3} [ :0-9]{11} [._[:alnum:]-]+ (sendmail|sm-(mta|msp|que))\[[0-9]+\]: .* message-id=
^\w{3} [ :0-9]{11} [._[:alnum:]-]+ (sendmail|sm-(mta|msp|que))\[[0-9]+\]: .* return to sender
^\w{3} [ :0-9]{11} [._[:alnum:]-]+ (sendmail|sm-(mta|msp|que))\[[0-9]+\]: .* stat=
^\w{3} [ :0-9]{11} [._[:alnum:]-]+ (sendmail|sm-(mta|msp|que))\[[0-9]+\]: .* timeout waiting
^\w{3} [ :0-9]{11} [._[:alnum:]-]+ (sendmail|sm-(mta|msp|que))\[[0-9]+\]: .*: Milter: data, discard
^\w{3} [ :0-9]{11} [._[:alnum:]-]+ (sendmail|sm-(mta|msp|que))\[[0-9]+\]: .*: discarded
^\w{3} [ :0-9]{11} [._[:alnum:]-]+ (sendmail|sm-(mta|msp|que))\[[0-9]+\]: AUTH=
^\w{3} [ :0-9]{11} [._[:alnum:]-]+ (sendmail|sm-(mta|msp|que))\[[0-9]+\]: (PLAIN|CRAM-MD5|DIGEST-MD5) set secret
^\w{3} [ :0-9]{11} [._[:alnum:]-]+ (sendmail|sm-(mta|msp|que))\[[0-9]+\]: DIGEST-MD5: failed .* later in exchange
^\w{3} [ :0-9]{11} [._[:alnum:]-]+ (sendmail|sm-(mta|msp|que))\[[0-9]+\]: STARTTLS=(server|client), .* verify=(OK|NO)
^\w{3} [ :0-9]{11} [._[:alnum:]-]+ (sendmail|sm-(mta|msp|que))\[[0-9]+\]: no secret in database$
^\w{3} [ :0-9]{11} [._[:alnum:]-]+ (sendmail|sm-(mta|msp|que))\[[0-9]+\]: [[:alnum:]]+: [[:alnum:]]+: DSN: Return receipt$
^\w{3} [ :0-9]{11} [._[:alnum:]-]+ (sendmail|sm-(mta|msp|que))\[[0-9]+\]: [[:alnum:]]+: collect: premature EOM: unexpected close$
^\w{3} [ :0-9]{11} [._[:alnum:]-]+ (sendmail|sm-(mta|msp|que))\[[0-9]+\]: [[:alnum:]]+: collect: unexpected close on connection from (\[[0-9.]+\]|[._[:alnum:]-]+), sender=<[^>]+>$
^\w{3} [ :0-9]{11} [._[:alnum:]-]+ (sendmail|sm-(mta|msp|que))\[[0-9]+\]: DIGEST-MD5 (server|client) step [[:alnum:]]+$
^\w{3} [ :0-9]{11} [._[:alnum:]-]+ (sendmail|sm-(mta|msp|que))\[[0-9]+\]: [[:alnum:]]+: Milter (add|change|delete|message).*: .*$
^\w{3} [ :0-9]{11} [._[:alnum:]-]+ (sendmail|sm-(mta|msp|que))\[[0-9]+\]: [[:alnum:]]+\[[0-9]+\]:.*$
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