postfix/(qmgr|smtp)\[[0-9]+\]: .* status=deferred \(connect to [^[:space:]\[]+\[[\.0-9]+\]: (Connection refused|server refused mail service)\)
postfix/cleanup\[[0-9]+\]: [A-Z0-9]+: message-id=<[^[:space:]>]+>$
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\[[0-9]+\]: .* status=bounced \(Name service error for .*: Host not found\)
postfix/smtp\[[0-9]+\]: .* status=bounced \(bad host/domain syntax: "[^"]+"\)
postfix/smtp\[[0-9]+\]: .* status=bounced \(host [^[:space:]]+ said: 550 .* (User unknown; rejecting|Relaying denied|Access denied\.|unknown or illegal alias: [^[:space:]]+|Recipient address rejected: This user does not have an account here \(MTA:imta15\))\)
postfix/smtp\[[0-9]+\]: .* status=bounced \(host [^[:space:]]+ said: 552 header content rejected: see .*\)
postfix/smtp\[[0-9]+\]: .* status=bounced \(host [^[:space:]]+ said: 554 <[^[:space:]>]+>:( Recipient address rejected:)? Relay access denied\)
postfix/smtp\[[0-9]+\]: .* status=bounced \(host [^[:space:]]+ said: 571 <>\.\.\. denied\)
postfix/smtp\[[0-9]+\]: .* status=deferred \(host [^[:space:]]+ said: 450 <[^[:space:]>]+>: (Recipient address rejected: Recipient mailbox is full|Sender address rejected: Domain not found\)
postfix/smtp\[[0-9]+\]: .* status=deferred \(host [^[:space:]]+ said: 451 Transaction failed.\)
postfix/smtp\[[0-9]+\]: [A-Z0-9]+: to=<[^[:space:]>]+>, relay=127\.0\.0\.1\[127\.0\.0\.1\], delay=[0-9]+, status=bounced \(host 127\.0\.0\.1\[127\.0\.0\.1\] said: 550 Message content rejected, id=[^\)]+\)$
postfix/smtp\[[0-9]+\]: connect to [^[:space:]\[]+\[[\.0-9]+\]: (Connection refused|server refused mail service) \(port 25\)$
postfix/smtpd\[[0-9]+\]: reject: RCPT from [^:]+: 504 <[^[:space:]>]+>: (Helo command|Recipient address) rejected: need fully-qualified address; from=<[^[:space:]>]+> to=<[^[:space:]>]+>$
postfix/smtpd\[[0-9]+\]: reject: RCPT from [^:]+: 550 <[^[:space:]>]+>: User unknown; from=<[^[:space:]>]+> to=<[^[:space:]>]+>$
postfix/smtpd\[[0-9]+\]: reject: RCPT from [^:]+: 554 <[^[:space:]>]+>: (Recipient address rejected: )?(Relay a|A)ccess denied; from=<[^[:space:]>]*> to=<[^[:space:]>]+>$
postfix/smtpd\[[0-9]+\]: reject: RCPT from [^:]+: 554 Service unavailable; .* blocked using .*; from=<[^[:space:]>]+> to=<[^[:space:]>]+>
postfix/smtpd\[[0-9]+\]: warning: [^[:space:]:]+: hostname [\.[:alnum:]-]+ verification failed: Host (name has no address|not found)$