This file is indexed.

/etc/logcheck/ignore.d.server/teapop 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:]-]+ teapop\[[[:digit:]]+\]: [-_.@[:alnum:]]+ \[[.[:digit:]]{7,15}\] R[[:digit:]]+\([[:digit:]]+\) D[[:digit:]]+\([[:digit:]]+\) L[[:digit:]]+\([[:digit:]]+\)$
^\w{3} [ :[:digit:]]{11} [._[:alnum:]-]+ teapop\[[[:digit:]]+\]: connect from [.[:digit:]]{7,15} \([.[:digit:]]{7,15}\)$
^\w{3} [ :[:digit:]]{11} [._[:alnum:]-]+ teapop\[[[:digit:]]+\]: Successful login for [-_.@[:alnum:]]+ \[[.[:digit:]]{7,15}\] from [^[:space:]]+ \[[.[:digit:]]{7,15}\]$
^\w{3} [ :[:digit:]]{11} [._[:alnum:]-]+ teapop\[[[:digit:]]+\]: can't do reverse dns on client (error = 0)$
^\w{3} [ :[:digit:]]{11} [._[:alnum:]-]+ teapop\[[[:digit:]]+\]: Caught SIGPIPE \(signal = [[:digit:]]+\) - Lost connection$