- 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\[[0-9]+\]: [A-Z0-9]+: to=<[^>,]*>, relay=[^[:space:]\[]+\[[\.0-9]+\], delay=[0-9]+, status=bounced \(Name service error for [^[:space:]:]+: Host not found\)$
- postfix/smtp\[[0-9]+\]: [A-Z0-9]+: to=<[^>,]*>, relay=[^[:space:]\[]+\[[\.0-9]+\], delay=[0-9]+, status=bounced \(bad host/domain syntax: "[^"]+"\)$
- 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: [^[:space:]\[]+\[[\.0-9]+\]: hostname [\.[:alnum:]-]+ verification failed: Host name has no address$
- # These are only for postfix << 2.0:
- postfix/smtp\[[0-9]+\]: [A-Z0-9]+: to=<[^>,]*>, relay=[^[:space:]\[]+\[[\.0-9]+\], delay=[0-9]+, status=(bounced|deferred) \(host [^[:space:]\[]+\[[\.0-9]+\] said: [45][0-9]{2} [^\)]+\)+$
- 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/smtp\[[0-9]+\]: [A-Z0-9]+: to=<[^>,]*>, relay=[^[:space:]\[]+\[[\.0-9]+\], delay=[0-9]+, status=bounced \(host [^[:space:]]+ said: 554 <[^>]+>:( Recipient address rejected:)? Relay access denied\) proto=E?SMTP helo=<[^[:space:]>]+>$
- postfix/smtpd\[[0-9]+\]: [A-Z0-9]+: reject: RCPT from [^[:space:]\[]+\[[\.0-9]+\]: [45][0-9]{2} <[^>]+>: [^;]+; from=<[^[:space:]>]+> to=<[^[:space:]>]+> proto=E?SMTP helo=<[^[:space:]>]+>$
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