^[-0-9]{10} [0-9:]{8} (Start|End) queue run: pid=[0-9]+$ ^[-0-9]{10} [0-9:]{8} [-[:alnum:]]+ Completed$ ^[-0-9]{10} [0-9:]{8} [-[:alnum:]]+ [=-]> [_[:alnum:]-]+ ? R=local_user T=mail_spool$ ^[-0-9]{10} [0-9:]{8} [-[:alnum:]]+ [=-]> [@._[:alnum:]-]+ ? R=dnslookup T=remote_smtp H=[._[:alnum:]-]+ \[[.0-9]{7,15}\]$ ^[-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)?$ ^[-0-9]{10} [0-9:]{8} [-[:alnum:]]+ <= [@._[:alnum:]-]+ U=[_[:alnum:]-]+ P=local S=[0-9]+( id=[^[:space:]]+)?$ ^[-0-9]{10} [0-9:]{8} [-[:alnum:]]+ <= [@._[:alnum:]-]+ H=[._[:alnum:]-]+ \[[.0-9]{7,15}\]( U=[_[:alnum:]-]+)? P=esmtp S=[0-9]+ id=[^[:space:]]+$ ^[-0-9]{10} [0-9:]{8} [-[:alnum:]]+ <= <> R=[_[:alnum:]-]+ U=[_[:alnum:]-]+ P=local S=[0-9]+$ ^[-0-9]{10} [0-9:]{8} [-[:alnum:]]+ <= <> H=[._[:alnum:]-]+ \[[.0-9]{7,15}\] P=esmtp S=[0-9]+ id=[^[:space:]]+$ ^[-0-9]{10} [0-9:]{8} SMTP command timeout on connection from [._[:alnum:]-]+ \[[.0-9]{7,15}\]$ ^[-0-9]{10} [0-9:]{8} [-[:alnum:]]+ == [@._[:alnum:]-]+ ? R=dnslookup T=remote_smtp defer \(-53\): retry time not reached for any host$ ^[-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\.$