^\w{3} [ :0-9]{11} [._[:alnum:]-]+ postfix/n?qmgr\[[0-9]+\]: [[:alnum:]]+: from=<.*>, status=expired, returned to sender$
^\w{3} [ :0-9]{11} [._[:alnum:]-]+ postfix/smtpd\[[0-9]+\]: warning: [.[:digit:]]+: hostname [^[:space:]]+ verification failed: (Host not found|Host name has no address|Name or service not known|Temporary failure in name resolution)$
^\w{3} [ :0-9]{11} [._[:alnum:]-]+ postfix/smtpd\[[0-9]+\]: [[:alnum:]]+: reject: (CONNECT|RCPT) from [^[:space:]]+: [45][0-9][0-9]( [0-9]\.[0-9]\.[0-9])? Client host rejected: cannot find your hostname, [^[:space:]]+; (from=[^[:space:]]+ to=[^[:space:]]+ )?proto=E?SMTP( helo=[^[:space:]]+)?$
^\w{3} [ :0-9]{11} [._[:alnum:]-]+ postfix/smtpd\[[0-9]+\]: [[:upper:]0-9]+: reject: (MAIL|RCPT) from [^[:space:]]+: [45][0-9][0-9]( [45](\.[[:digit:]]){2})? <[^[:space:]]+>: (Sender|Recipient) address rejected: .+; from=<[^[:space:]]*>( to=<[^[:space:]]+>)? proto=E?SMTP helo=<[^[:space:]]+>$
^\w{3} [ :0-9]{11} [._[:alnum:]-]+ postfix/smtpd\[[0-9]+\]: [[:upper:]0-9]+: reject: RCPT from [^[:space:]]+: [45][0-9][0-9]( [45](\.[[:digit:]]){2})? <[^[:space:]]+>: Helo command rejected: .+; from=<[^[:space:]]*> to=<[^[:space:]]+> proto=E?SMTP helo=<[^[:space:]]+>$
^\w{3} [ :0-9]{11} [._[:alnum:]-]+ postfix/smtpd\[[0-9]+\]: [[:upper:]0-9]+: reject: RCPT from [^[:space:]]+: [0-9]{3}( [45](\.[[:digit:]]){2})? <[^[:space:]]+>: Relay access denied; from=<[^[:space:]]*> to=<[^[:space:]]+> proto=E?SMTP helo=<[^[:space:]]+>$
^\w{3} [ :0-9]{11} [._[:alnum:]-]+ postfix/smtpd\[[0-9]+\]: [[:upper:]0-9]+: reject: RCPT from [^[:space:]]+: [45][0-9][0-9]( [45](\.[[:digit:]]){2})? Service unavailable; Sender address \[[^[:space:]]+\] blocked using [._[:alnum:]-]+;( .*;)? from=<[^[:space:]]*> to=<[^[:space:]]+> proto=E?SMTP helo=<[^[:space:]]+>$
^\w{3} [ :0-9]{11} [._[:alnum:]-]+ postfix/smtpd\[[0-9]+\]: [[:upper:]0-9]+: reject: (CONNECT|RCPT) from [^[:space:]]+: [45][0-9][0-9]( [45](\.[[:digit:]]){2})? Service unavailable; Client host \[([0-9.]{7,15}|[-._[:alnum:]]+)\] blocked using [._[:alnum:]-]+;( .+;)? (from=<[^[:space:]]*> to=<[^[:space:]]+> )?proto=E?SMTP( helo=<[^[:space:]]+>)?$
^\w{3} [ :0-9]{11} [._[:alnum:]-]+ postfix/smtpd\[[0-9]+\]: [[:upper:]0-9]+: reject: RCPT from [^[:space:]]+\[[0-9.]{7,15}\]: [45][0-9][0-9] <.+>: User unknown in local recipient table; from=<[^[:space:]]*> to=<[^[:space:]]+> proto=E?SMTP helo=<[^[:space:]]+>$
^\w{3} [ :0-9]{11} [._[:alnum:]-]+ postfix/smtpd\[[0-9]+\]: [[:upper:]0-9]+: reject: [[:upper:]]+ from [^[:space:]]+\[[0-9.]{7,15}\]: 503 5\.5\.0 <[[:upper:]]+>: [[:alnum:]]+ command rejected: Improper use of SMTP command pipelining; from=<[^[:space:]]*> to=<[^[:space:]]+> proto=E?SMTP helo=<[^[:space:]]+>$
^\w{3} [ :0-9]{11} [._[:alnum:]-]+ postfix/smtpd\[[0-9]+\]: NOQUEUE: reject: [[:upper:]]+ from [^[:space:]]+\[[0-9.]{7,15}\]: 503 5\.5\.0 <[^[:space:]]+>: Client host rejected: Improper use of SMTP command pipelining; from=<[^[:space:]]*> to=<[^[:space:]]+> proto=E?SMTP helo=<[^[:space:]]+>$
^\w{3} [ :0-9]{11} [._[:alnum:]-]+ postfix/smtpd\[[0-9]+\]: (NOQUEUE|[[:xdigit:]]+): reject: (HE|EH)LO from [^[:space:]]+\[[0-9.]{7,15}\]: [45][0-9]{2}( [45](\.[0-9]){2})? <[^[:space:]]+>: Helo command rejected: .+; proto=E?SMTP helo=<[^[:space:]]+>$
^\w{3} [ :0-9]{11} [._[:alnum:]-]+ postfix/smtpd\[[0-9]+\]: warning:( smtpd_peer_init:)? [0-9]+\.[0-9]+\.[0-9]+\.[0-9]+: hostname [^[:space:]]+ verification failed: (Temporary failure in name resolution|Name or service not known|No address associated with hostname)$
^\w{3} [ :0-9]{11} [._[:alnum:]-]+ postfix/smtp\[[0-9]+\]: Peer verification: CommonName in certificate does not match: [._*[:alnum:]-]+ != [._[:alnum:]-]+$
^\w{3} [ :0-9]{11} [._[:alnum:]-]+ postfix/smtp\[[0-9]+\]: [[:upper:]0-9]+: host [^[:space:]]+ said: [45][0-9][0-9][- ]+.* \(in reply to (HELO|EHLO|MAIL FROM|RCPT TO|(end of )?DATA) command\)$
^\w{3} [ :0-9]{11} [._[:alnum:]-]+ postfix/smtp\[[0-9]+\]: [[:upper:]0-9]+: to=<[^[:space:]]+>(, orig_to=<[^[:space:]]+>)?, relay=[._[:alnum:]-]+\[[0-9.]{7,15}\](:[[:digit:]]{1,5})?,( conn_use=[0-9]+,)? delay=[.0-9]+(, delays=([.0-9]+/){3}[.0-9]+)?(, dsn=[45](\.[0-9]+){2})?, status=(deferred|bounced|undeliverable|SOFTBOUNCE) \(host [._[:alnum:]-]+\[[0-9.]{7,15}\] said: [45][0-9][0-9][- ]+.* \(in reply to (HELO|EHLO|MAIL FROM|RCPT TO|DATA|end of DATA) command\)\)$
^\w{3} [ :0-9]{11} [._[:alnum:]-]+ postfix/smtp\[[0-9]+\]: [[:upper:]0-9]+: to=<[^[:space:]]+>, relay=[._[:alnum:]-]+\[[0-9.]{7,15}\](:[[:digit:]]{1,5})?, delay=[.0-9]+(, delays=([.0-9]+/){3}[.0-9]+)?(, dsn=2(\.[0-9]+){2})?, status=deliverable \(2[0-9][0-9] .*\)$
^\w{3} [ :0-9]{11} [._[:alnum:]-]+ postfix/smtp\[[0-9]+\]: [A-Z0-9]+: to=<[^[:space:]]+>, relay=[^[:space:]]+, delay=[0-9]+, status=deferred \(host [^[:space:]]+ refused to talk to me: [^[:space:]]+ 554 Access denied\)$
^\w{3} [ :0-9]{11} [._[:alnum:]-]+ postfix/smtp\[[0-9]+\]: [A-Z0-9]+: to=<[^[:space:]]+>,( orig_to=<[^[:space:]]+>,) relay=[^[:space:]]+, delay=[0-9]+, status=deferred \(host [^[:space:]]+ said: [45][0-9]{2} <[^[:space:]]+>: Recipient address rejected: Greylisted for [0-9]+ (seconds|minutes)( \(see http://isg.ee.ethz.ch/tools/postgrey/help/[.[:alnum:]-]+.html\))? \(in reply to (HELO|EHLO|MAIL FROM|RCPT TO|DATA|end of DATA) command\)\)$
^\w{3} [ :0-9]{11} [._[:alnum:]-]+ postfix/smtpd\[[0-9]+\]: warning: Read failed in network_biopair_interop with errno=[0-9]+: num_read=[-0-9]+, want_read=[0-9]+$
^\w{3} [ :0-9]{11} [._[:alnum:]-]+ postfix/policy-spf\[[0-9]+\]: handler sender_permitted_from: DUNNO$
^\w{3} [ :0-9]{11} [._[:alnum:]-]+ postfix/policy-spf\[[0-9]+\]: : SPF none: smtp_comment=SPF: domain of sender [^[:space:]]+ does not designate mailers, header_comment=[.[:lower:]]+: domain of [^[:space:]]+ does not designate permitted sender hosts$
^\w{3} [ :0-9]{11} [._[:alnum:]-]+ postfix/smtpd?\[[0-9]+\]: certificate verification failed for [^[:space:]]+: (num=10:)?certificate has expired$
^\w{3} [ :0-9]{11} [._[:alnum:]-]+ postfix/smtpd?\[[0-9]+\]: certificate verification failed for [^[:space:]]+: (num=18:)?self[- ]signed certificate$
^\w{3} [ :0-9]{11} [._[:alnum:]-]+ postfix/smtpd?\[[0-9]+\]: certificate verification failed for [^[:space:]]+: (num=19:)?self[- ]signed certificate in certificate chain$
^\w{3} [ :0-9]{11} [._[:alnum:]-]+ postfix/smtpd?\[[0-9]+\]: certificate verification failed for [^[:space:]]+: (num=20:)?unable to get local issuer certificate$
^\w{3} [ :0-9]{11} [._[:alnum:]-]+ postfix/smtpd?\[[0-9]+\]: certificate verification failed for [^[:space:]]+: (num=21:)?unable to verify the first certificate$
^\w{3} [ :0-9]{11} [._[:alnum:]-]+ postfix/smtpd?\[[0-9]+\]: certificate verification failed for [^[:space:]]+: (num=24:)?invalid CA certificate$
^\w{3} [ :0-9]{11} [._[:alnum:]-]+ postfix/smtpd?\[[0-9]+\]: certificate verification failed for [^[:space:]]+: (num=26:)?unsupported certificate purpose$
^\w{3} [ :0-9]{11} [._[:alnum:]-]+ postfix/smtpd?\[[0-9]+\]: certificate verification failed for [^[:space:]]+: (num=27:)?certificate not trusted$
^\w{3} [ :0-9]{11} [._[:alnum:]-]+ postfix/smtpd?\[[0-9]+\]: certificate verification failed for [^[:space:]]+: untrusted issuer [-@._/=[:space:][:alnum:]]+$
^\w{3} [ :0-9]{11} [._[:alnum:]-]+ postfix/smtpd?\[[0-9]+\]: certificate peer name verification failed for [^[:space:]]+: [[:digit:]]+ dNSNames in certificate found, but none matches
^\w{3} [ :0-9]{11} [._[:alnum:]-]+ postfix/smtpd?\[[0-9]+\]: certificate peer name verification failed for [^[:space:]]+: CommonName mis-match:( [._[:alnum:]-]+)?$
^\w{3} [ :0-9]{11} [._[:alnum:]-]+ postfix/smtpd\[[0-9]+\]: [[:upper:]0-9]+: reject: RCPT from [^[:space:]]+: [45][0-9][0-9]( [45](\.[[:digit:]]){2})? <[^[:space:]]+>: Client host rejected: Greylisted( for [0-9]+ (seconds|minutes))?,?( \(?see http://isg\.ee\.ethz\.ch/tools/postgrey/help/[.[:alnum:]-]+\.html\)?;)? from=<[^[:space:]]*> to=<[^[:space:]]+> proto=E?SMTP helo=<[^[:space:]]+>$
^\w{3} [ :0-9]{11} [._[:alnum:]-]+ postfix/qmgr\[[0-9]+\]: [[:alnum:]]+: from=<[^[:space:]]*>, size=[0-9]+, nrcpt=[0-9]+ \(queue active\)$
^\w{3} [ :0-9]{11} [._[:alnum:]-]+ postfix/local\[[0-9]+\]: [[:upper:][:digit:]]+: to=<[^[:space:]]+>,( orig_to=<[^[:space:]]+>,)* relay=local, delay=[0-9]+, status=sent \(delivered to command: /var/lib/mailman/mail/mailman admin [._[:alnum:]-]+\)$
^\w{3} [ :0-9]{11} [._[:alnum:]-]+ postfix/smtpd\[[0-9]+\]: NOQUEUE: reject: [[:upper:]]+ from [^[:space:]]+: 554( [0-9]\.[0-9]\.[0-9])? <[^[:space:]]+>: Client host rejected: Access denied;( from=<[^[:space:]]*> to=<[^[:space:]]+>)? proto=E?SMTP( helo=<[^[:space:]]+>)?$
^\w{3} [ :0-9]{11} [._[:alnum:]-]+ postfix/smtpd\[[0-9]+\]: NOQUEUE: reject: [[:upper:]]+ from [^[:space:]]+: 554( 5\.7\.1)? <[^[:space:]]+>: Relay access denied;( from=<[^[:space:]]*> to=<[^[:space:]]+>)? proto=E?SMTP( helo=<[^[:space:]]+>)?$
^\w{3} [ :0-9]{11} [._[:alnum:]-]+ postfix/smtpd\[[0-9]+\]: (NOQUEUE|[[:xdigit:]]+): reject: [[:upper:]]+ from [^[:space:]]+: 550( 5\.1\.[01])? <[^[:space:]]+>: (Sender|Recipient) address rejected: User unknown in ((local|relay) recipient|virtual alias) table;( from=<[^[:space:]]*> to=<[^[:space:]]+>)? proto=E?SMTP( helo=<[^[:space:]]+>)?$
^\w{3} [ :0-9]{11} [._[:alnum:]-]+ postfix/[ls]mtp\[[0-9]+\]: [[:upper:][:digit:]]+: to=<[^[:space:]]+>,( orig_to=<[^[:space:]]+>,)? relay=[^[:space:]]+,( conn_use=[[:digit:]]+,)? delay=[.0-9]+,( delays=[.0-9/]+, dsn=[0-9.]+,)? status=sent \(250 [0-9.]+ Ok((, id=[-0-9]+, from MTA(\([^[:space:]]+\))?: 250 ([0-9.]+ )?Ok)?: queued as [0-9A-F]+|, discarded, UBE, id=[-0-9]+)*|, DSN muted \([45][0-9][0-9] [45](\.[0-9]){2} .+\)\)$
^\w{3} [ :0-9]{11} [._[:alnum:]-]+ postfix/[ls]mtp\[[0-9]+\]: [[:upper:][:digit:]]+: to=<[^[:space:]]+>,( orig_to=<[^[:space:]]+>,)* relay=[^[:space:]]+,( conn_use=[[:digit:]]+,)? delay=[.0-9]+,( delays=[.0-9/]+, dsn=[0-9.]+,)? status=sent \(250 Ok: queued as [0-9A-F]+\)$
^\w{3} [ :[:digit:]]{11} [._[:alnum:]-]+ postfix/smtpd\[[[:digit:]]+\]: warning: [-._[:alnum:]]+\[[.[:digit:]]+\]: SASL (LOGIN|PLAIN|(DIGEST|CRAM)-MD5|APOP) authentication failed(:[ [:alnum:]]*)?$
^\w{3} [ :[:digit:]]{11} [._[:alnum:]-]+ postfix/smtpd\[[[:digit:]]+\]: warning: SASL authentication failure: .+$
^\w{3} [ :[:digit:]]{11} [._[:alnum:]-]+ postfix/local\[[[:digit:]]+\]: warning: maildir access problem for UID/GID=[[:digit:]]+/[[:digit:]]+: create [/.[:alnum:]]+: Permission denied$
^\w{3} [ :0-9]{11} [._[:alnum:]-]+ postfix/local\[[0-9]+\]: [[:upper:][:digit:]]+: to=<[^[:space:]]+>,( orig_to=<[^[:space:]]+>,)? relay=local, delay=[0-9.]+(, delays=([.0-9]+/){3}[.0-9]+)?(, dsn=[45](\.[0-9]+){2})?, status=(deferred|bounced) \(.+\)$
^\w{3} [ :0-9]{11} [._[:alnum:]-]+ postfix/cleanup\[[0-9]+\]: [[:upper:]0-9]+: reject: header [^[:space:]]+:.+ from=<[^[:space:]]*>( to=<[^[:space:]]+>)? proto=E?SMTP helo=<[^[:space:]]+>: .+$
^\w{3} [ :0-9]{11} [._[:alnum:]-]+ postfix/cleanup\[[0-9]+\]: [[:alnum:]]+: (resent-|)message-id=<?[^>]+>?( \(added by [^[:space:]]+\))?$
^\w{3} [ :0-9]{11} [._[:alnum:]-]+ postfix/pickup\[[0-9]+\]: [[:alnum:]]+: uid=[[:digit:]]+ from=<[^[:space:]]+>$
^\w{3} [ :0-9]{11} [._[:alnum:]-]+ postfix/cleanup\[[0-9]+\]: [[:xdigit:]]+: milter-reject: END-OF-MESSAGE from [-._[:alnum:]]+\[[.[:digit:]]+\]: [45]\.7\.1 virus [-._/[:alnum:]]+ detected by ClamAV - http://www\.clamav\.net; from=<[^[:space:]]*> to=<[^[:space:]]+> proto=E?SMTP helo=<[^[:space:]]+>$
^\w{3} [ :0-9]{11} [._[:alnum:]-]+ postfix/smtpd\[[0-9]+\]: NOQUEUE: milter-reject: MAIL from [-._[:alnum:]]+\[[.[:digit:]]+\]: 451 4\.(7\.1 Service unavailable|3\.2 AV system temporarily overloaded) - (please )?try (again )?later; proto=E?SMTP helo=<[^[:space:]]+>$
^\w{3} [ :0-9]{11} [._[:alnum:]-]+ postfix/smtpd\[[0-9]+\]: NOQUEUE: milter-reject: RCPT from [-._[:alnum:]]+\[[.[:digit:]]+\]: 554 5\.7\.1 Suspicious recipient address blocked; from=<[^[:space:]]*> proto=E?SMTP helo=<[^[:space:]]+>$
^\w{3} [ :0-9]{11} [._[:alnum:]-]+ postfix/smtpd\[[0-9]+\]: warning: reject: ETRN [._[:alnum:]-]+\.\.\. from [._[:alnum:]-]+\[[0-9.]{7,15}\]$
^\w{3} [ :0-9]{11} [._[:alnum:]-]+ postfix/smtpd\[[0-9]+\]: warning: Unable to look up MX host [._[:alnum:]-]+ for Sender address [^[:space:]]+: Temporary failure in name resolution$
^\w{3} [ :0-9]{11} [._[:alnum:]-]+ postfix/smtpd\[[0-9]+\]: (dis)?connect from [^[:space:]]+$
^\w{3} [ :0-9]{11} [._[:alnum:]-]+ postfix/smtpd\[[0-9]+\]: [[:alnum:]]+: client=[._[:alnum:]-]+\[[0-9a-f.:]{3,39}\]$
^\w{3} [ :0-9]{11} [._[:alnum:]-]+ postfix/cleanup\[[0-9]+\]: [[:alnum:]]+: milter-discard: END-OF-MESSAGE from [-._[:alnum:]]+\[[.[:digit:]]+\]: milter triggers DISCARD action; from=<[^[:space:]]*> to=<[^[:space:]]*> proto=E?SMTP helo=<[^[:space:]]+>$