postfix/(local|smtpd)\[[0-9]+\]: warning: [\.0-9]+: hostname [^[:space:]]+ verification failed: Host not found(, try again)?$
postfix/cleanup\[[0-9]+\]: [A-Z0-9]+: message-id=<[^[:space:]>]+>$
postfix/local\[[0-9]+\]: warning: reject: ETRN [^[:space:]]+\.\.\. from [^[:space:]\[]+\[[\.0-9]+\]$
postfix/local\[[0-9]+\]: warning: unable to create lock file /var/mail/[[:alnum:]]+\.lock: Permission denied$
postfix/nqmgr\[[0-9]+\]: [A-Z0-9]+: from=<[^[:space:]>]+>, size=[0-9]+, nrcpt=[0-9]+ \(queue active\)$
postfix/smtp\[[0-9]+\]: Peer verification: CommonName in certificate does not match: [^!]+ != [^[:space:]]+$
postfix/smtp\[[0-9]+\]: (Unv|V)erified: subject_CN=.*, issuer=.*
postfix/smtp\[[0-9]+\]: [A-Z0-9]+: to=<[^>,]*>(, orig_to=<[^>,]*>)?, relay=[^[:space:]\[,]+\[[\.0-9]+\], delay=[0-9]+, status=(bounced|deferred) \([^\(\)]+(\([^\(\)]*\))*[^\(\)]*\)( proto=E?SMTP helo=<[^[:space:]>]+>)?$
postfix/smtp\[[0-9]+\]: connect to [^[:space:]\[]+\[[\.0-9]+\]: (Connection refused|server refused mail service) \(port 25\)$
postfix/smtpd\[[0-9]+\]: reject: RCPT from [^[:space:]\[]+\[[\.0-9]+\]: 452 Insufficient system storage; from=<[^[:space:]>]+> to=<[^[:space:]>]+>$
postfix/smtpd\[[0-9]+\]: warning: Illegal address syntax from [^[:space:]\[]+\[[\.0-9]+\] in RCPT command: .*
postfix/smtpd\[[0-9]+\]: warning: [\.0-9]+: hostname [^[:space:]]+ verification failed: Host name has no address$
# These are only for postfix << 2.0:
postfix/smtpd\[[0-9]+\]: reject: RCPT from [^[:space:]\[]+\[[\.0-9]+\]: [45][0-9]{2} [^;]+; from=<[^[:space:]>]+> to=<[^[:space:]>]+>$
# These are only for postfix >= 2.0:
postfix/smtpd\[[0-9]+\]: [A-Z0-9]+: reject: RCPT from [^[:space:]\[]+\[[\.0-9]+\]: [45][0-9]{2} [^;]+; from=<[^>]*>( to=<[^>]*>)? proto=E?SMTP helo=<[^[:space:]>]+>$