etc/logcheck/ignore.d.server/exim4

   1 ^[-0-9]{10} [0-9:]{8} (Start|End) queue run: pid=[0-9]+$
   2 ^[-0-9]{10} [0-9:]{8} [-[:alnum:]]+ Completed$
   3 ^[-0-9]{10} [0-9:]{8} [-[:alnum:]]+ [=-]> [_[:alnum:]-]+ <?[@._[:alnum:]-]+>? R=local_user T=mail_spool$
   4 ^[-0-9]{10} [0-9:]{8} [-[:alnum:]]+ [=-]> [@._[:alnum:]-]+ <?[@._[:alnum:]-]+>? R=dnslookup T=remote_smtp H=[._[:alnum:]-]+ \[[.0-9]{7,15}\]$
   5 ^[-0-9]{10} [0-9:]{8} [-[:alnum:]]+ [=-]> [@._[:alnum:]-]+ R=dnslookup T=remote_smtp H=[._[:alnum:]-]+ \[[.0-9]{7,15}\]( X=TLS-1.0:RSA_AES_256_CBC_SHA1?:32)?$
   6 ^[-0-9]{10} [0-9:]{8} [-[:alnum:]]+ <= [@._[:alnum:]-]+ U=[_[:alnum:]-]+ P=local S=[0-9]+( id=[^[:space:]]+)?$
   7 ^[-0-9]{10} [0-9:]{8} [-[:alnum:]]+ <= [@._[:alnum:]-]+ H=[._[:alnum:]-]+ \[[.0-9]{7,15}\]( U=[_[:alnum:]-]+)? P=esmtp S=[0-9]+ id=[^[:space:]]+$
   8 ^[-0-9]{10} [0-9:]{8} [-[:alnum:]]+ <= <> R=[_[:alnum:]-]+ U=[_[:alnum:]-]+ P=local S=[0-9]+$
   9 ^[-0-9]{10} [0-9:]{8} [-[:alnum:]]+ <= <> H=[._[:alnum:]-]+ \[[.0-9]{7,15}\] P=esmtp S=[0-9]+ id=[^[:space:]]+$
  10 ^[-0-9]{10} [0-9:]{8} SMTP command timeout on connection from [._[:alnum:]-]+ \[[.0-9]{7,15}\]$
  11 ^[-0-9]{10} [0-9:]{8} [-[:alnum:]]+ == [@._[:alnum:]-]+ <?[@._[:alnum:]-]+>? R=dnslookup T=remote_smtp defer \(-53\): retry time not reached for any host$
  12 ^[-0-9]{10} [0-9:]{8} [-[:alnum:]]+ SMTP error from remote mailer after initial connection: host [._[:alnum:]-]+ \[[.0-9]{7,15}\]: 421 gluck.debian.org: Too many concurrent SMTP connections; please try again later\.$