This file is indexed.

/etc/logcheck/ignore.d.server/sasl2-bin 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.

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^\w{3} [ :[:digit:]]{11} [._[:alnum:]-]+ saslpasswd2: error deleting entry from sasldb: DB_NOTFOUND: No matching key/data pair found$
^\w{3} [ :[:digit:]]{11} [._[:alnum:]-]+ saslpasswd2: setpass failed for [-._[:alnum:]]+: user not found$