Use recipient address verification probes.

This is specially useful for mailing lists and the webmail, since it
prevents our outgoing gateway from accepting mails known to be bouncing.
However the downside is that it adds a delay of up to 6s after the
RCPT TO command.

1 files changed, 6 insertions, 3 deletions

diff --git a/roles/common/files/etc/logcheck/ignore.d.server/postfix-local b/roles/common/files/etc/logcheck/ignore.d.server/postfix-local
index 5e16aea..fd6cbcb 100644
--- a/roles/common/files/etc/logcheck/ignore.d.server/postfix-local
+++ b/roles/common/files/etc/logcheck/ignore.d.server/postfix-local
@@ -1,61 +1,64 @@
 # Ansible Managed
 # Do NOT edit this file directly!
 #
 ^\w{3} [ :[:digit:]]{11} [._[:alnum:]-]+ postfix/local\[[[:digit:]]+\]: [[:xdigit:]]{10}: to=<[^[:space:]]+>,( orig_to=<[^[:space:]]+>,)? relay=local, delay=[.[:digit:]]+(, delays=([.[:digit:]]+/){3}[.[:digit:]]+)?(, dsn=2(\.[[:digit:]]+){2})?, status=sent \(forwarded as [[:xdigit:]]{10}\)$
 ^\w{3} [ :[:digit:]]{11} [._[:alnum:]-]+ postfix(-\w+)?/postfix-script\[[[:digit:]]+\]: refreshing the Postfix mail system$
 ^\w{3} [ :[:digit:]]{11} [._[:alnum:]-]+ postfix(-\w+)?/master[[[:digit:]]+]: reload -- version [.[:digit:]]+, configuration /etc/postfix$
 ^\w{3} [ :[:digit:]]{11} [._[:alnum:]-]+ postfix(-\w+)?/smtpd\[[[:digit:]]+\]: (dis)?connect from [^[:space:]]+$
-^\w{3} [ :[:digit:]]{11} [._[:alnum:]-]+ postfix(-\w+)?/[ls]mtp\[[[:digit:]]+\]: [[:xdigit:]]{10}: to=<[^[:space:]]+>,( orig_to=<[^[:space:]]+>,)? relay=[._[:alnum:]-]+\[[[:digit:].]{7,15}\](:[[:digit:]]{1,5})?, (conn_use=[[:digit:]]+, )?delay=[.[:digit:]]+(, delays=([.[:digit:]]+/){3}[.[:digit:]]+)?(, dsn=2(\.[[:digit:]]+){2})?, status=sent \(2[[:digit:]][[:digit:]] .+\)$
+^\w{3} [ :[:digit:]]{11} [._[:alnum:]-]+ postfix(-\w+)?/smtpd\[[[:digit:]]+\]: (NOQUEUE|[[:xdigit:]]{10}): reject: RCPT from [._[:alnum:]-]+\[[[:digit:].]{7,15}\]: [45][[:digit:]][[:digit:]] [45](\.[[:digit:]]+){2} <[^>]+>: Recipient address rejected: ((unverified|undeliverable) address:|Domain not found;)
+^\w{3} [ :[:digit:]]{11} [._[:alnum:]-]+ postfix(-\w+)?/[ls]mtp\[[[:digit:]]+\]: [[:xdigit:]]{10}: to=<[^[:space:]]+>,( orig_to=<[^[:space:]]+>,)? relay=[._[:alnum:]-]+\[[[:digit:].]{7,15}\](:[[:digit:]]{1,5})?, (conn_use=[[:digit:]]+, )?delay=[.[:digit:]]+(, delays=([.[:digit:]]+/){3}[.[:digit:]]+)?(, dsn=2(\.[[:digit:]]+){2})?, status=(sent|deliverable) \(2[[:digit:]][[:digit:]] .+\)$
 ^\w{3} [ :[:digit:]]{11} [._[:alnum:]-]+ postfix(-\w+)?/anvil\[[[:digit:]]+\]: statistics: max (message|recipient|connection) (count|rate) [/[:digit:]s]+ for \(([.:[:xdigit:]]+)?(smtp[sd]?|25|submission|587)?:([.:[:xdigit:]]+|unknown)\) at \w{3} [ :[:digit:]]{11}$
 ^\w{3} [ :[:digit:]]{11} [._[:alnum:]-]+ postfix(-\w+)?/anvil\[[[:digit:]]+\]: statistics: max cache size [[:digit:]]+ at \w{3} [ :[:digit:]]{11}$
 ^\w{3} [ :[:digit:]]{11} [._[:alnum:]-]+ postfix(-\w+)?/scache\[[[:digit:]]+\]: statistics: start interval \w{3} [ :[:digit:]]{11}$
 ^\w{3} [ :[:digit:]]{11} [._[:alnum:]-]+ postfix(-\w+)?/scache\[[[:digit:]]+\]: statistics: (domain|address) lookup hits=[[:digit:]]+ miss=[[:digit:]]+ success=[[:digit:]]+%$
 ^\w{3} [ :[:digit:]]{11} [._[:alnum:]-]+ postfix(-\w+)?/scache\[[[:digit:]]+\]: statistics: max simultaneous domains=[[:digit:]]+ addresses=[[:digit:]]+ connection=[[:digit:]]+$
 ^\w{3} [ :[:digit:]]{11} [._[:alnum:]-]+ postfix(-\w+)?/smtpd\[[[:digit:]]+\]: [[:alnum:]]+: client=[._[:alnum:]-]+\[[[:xdigit:].:]{3,39}\]$
 ^\w{3} [ :[:digit:]]{11} [._[:alnum:]-]+ postfix(-\w+)?/cleanup\[[[:digit:]]+\]: [[:alnum:]]+: (resent-|)message-id=(<[^>]*>|[[:alnum:]_/+.@-]+)( \(added by [^[:space:]]+\))?$
 ^\w{3} [ :[:digit:]]{11} [._[:alnum:]-]+ postfix(-\w+)?/qmgr\[[[:digit:]]+\]: [[:alnum:]]+: from=<[^[:space:]]*>, size=[[:digit:]]+, nrcpt=[[:digit:]]+ \(queue active\)$
 ^\w{3} [ :[:digit:]]{11} [._[:alnum:]-]+ postfix(-\w+)?/n?qmgr\[[[:digit:]]+\]: [[:alnum:]]+: from=<.*>, status=expired, returned to sender$
 ^\w{3} [ :[:digit:]]{11} [._[:alnum:]-]+ postfix(-\w+)?/n?qmgr\[[[:digit:]]+\]: [[:alnum:]]+: message-id=(<[^>]*>|[[:alnum:]_/+.@-]+)( \(added by [^[:space:]]+\))?
 ^\w{3} [ :[:digit:]]{11} [._[:alnum:]-]+ postfix(-\w+)?/n?qmgr\[[[:digit:]]+\]: [[:alnum:]]+: removed$
 ^\w{3} [ :[:digit:]]{11} [._[:alnum:]-]+ postfix(-\w+)?/n?qmgr\[[[:digit:]]+\]: [[:alnum:]]+: skipped, still being delivered$
+^\w{3} [ :[:digit:]]{11} [._[:alnum:]-]+ postfix(-\w+)?/verify\[[[:digit:]]+\]: close database /var/lib/postfix\1/verify_cache\.db: No such file or directory \(possible Berkeley DB bug\)$
+^\w{3} [ :[:digit:]]{11} [._[:alnum:]-]+ postfix(-\w+)?/verify\[[[:digit:]]+\]: cache btree:/var/lib/postfix\1/verify_cache full cleanup: retained=[[:digit:]]+ dropped=[[:digit:]]+ entries$
 ^\w{3} [ :[:digit:]]{11} [._[:alnum:]-]+ postfix-msa/smtpd\[[[:digit:]]+\]: lost connection after (AUTH|DATA \([[:digit:]]+ bytes\)) from [._[:alnum:]-]+\[[[:digit:].]{7,15}\]$
 ^\w{3} [ :[:digit:]]{11} [._[:alnum:]-]+ postfix-\w+/smtpd\[[[:digit:]]+\]: lost connection after (CONNECT|STARTTLS) from [._[:alnum:]-]+\[([[:digit:].]{7,15}|unknown)\]$
 ^\w{3} [ :[:digit:]]{11} [._[:alnum:]-]+ postfix-msa/cleanup\[[[:digit:]]+\]: [[:xdigit:]]{10}: replace: header\s
 ^\w{3} [ :[:digit:]]{11} [._[:alnum:]-]+ postfix-msa/smtpd\[[[:digit:]]+\]: [[:xdigit:]]{10}: client=[^[:space:]]+, sasl_method=[-[:alnum:]]+, sasl_username=[-_.@[:alnum:]]+(, sasl_sender=[-_.@[:alnum:]]+)?$
 ^\w{3} [ :[:digit:]]{11} [._[:alnum:]-]+ postfix-msa/smtpd\[[[:digit:]]+\]: warning: [-._[:alnum:]]+\[[.[:digit:]]+\]: SASL (PLAIN|LOGIN) authentication failed(:[ [:alnum:]]*)?$
 ^\w{3} [ :[:digit:]]{11} [._[:alnum:]-]+ postfix-(msa|mx)/smtpd\[[[:digit:]]+\]: improper command pipelining after EHLO from [._[:alnum:]-]+\[[[:digit:].]{7,15}\]:\s
 ^\w{3} [ :[:digit:]]{11} [._[:alnum:]-]+ postfix-(msa|mx)/smtpd\[[[:digit:]]+\]: warning: hostname [._[:alnum:]-]+ does not resolve to address [[:xdigit:].:]{3,39}(: Name or service not known)?$
 ^\w{3} [ :[:digit:]]{11} [._[:alnum:]-]+ postfix-mx/smtpd\[[[:digit:]]+\]: warning: Connection concurrency limit exceeded: [0-9]+ from [._[:alnum:]-]+\[[[:digit:].]{7,15}\] for service smtpd$
 ^\w{3} [ :[:digit:]]{11} [._[:alnum:]-]+ postfix-(msa|mx)/smtpd\[[[:digit:]]+\]: timeout after [-[:upper:]]+( \([[:digit:]]+ bytes\))? from [^[:space:]]+$
 ^\w{3} [ :[:digit:]]{11} [._[:alnum:]-]+ postfix-((msa|mx)/smtpd|out/smtp)\[[[:digit:]]+\]: warning: (tls_text_name: [-._[:alnum:]]+\[[[:xdigit:].:]{3,39}\]: )?peer certificate has no (subject CN|issuer Organization)$
 ^\w{3} [ :[:digit:]]{11} [._[:alnum:]-]+ postfix-(msa|webmail)/smtpd\[[[:digit:]]+\]: (NOQUEUE|[[:xdigit:]]+): reject: [[:upper:]]+ from [^[:space:]]+: 450( 4\.1\.2)? <[^>]*>: Recipient address rejected: Domain not found;( from=<[^>]*> to=<[^[:space:]]+>)? proto=E?SMTP( helo=<[^[:space:]]+>)?$
 ^\w{3} [ :[:digit:]]{11} [._[:alnum:]-]+ postfix-(msa|webmail)/smtpd\[[[:digit:]]+\]: (NOQUEUE|[[:xdigit:]]+): reject: [[:upper:]]+ from [^[:space:]]+: 450( 4\.1\.8)? <[^>]*>: Sender address rejected: Domain not found;( from=<[^>]*> to=<[^[:space:]]+>)? proto=E?SMTP( helo=<[^[:space:]]+>)?$
 ^\w{3} [ :[:digit:]]{11} [._[:alnum:]-]+ postfix-(msa|webmail)/smtpd\[[[:digit:]]+\]: (NOQUEUE|[[:xdigit:]]+): reject: [[:upper:]]+ from [^[:space:]]+: 504( 5\.5\.2)? <[^>]*>: (Recipient|Sender) address rejected: need fully-qualified address;( from=<[^>]*> to=<[^[:space:]]+>)? proto=E?SMTP( helo=<[^[:space:]]+>)?$
 ^\w{3} [ :[:digit:]]{11} [._[:alnum:]-]+ postfix-msa/smtpd\[[[:digit:]]+\]: NOQUEUE: reject: RCPT from [._[:alnum:]-]+\[[[:xdigit:].:]{3,39}\]: 554 5\.7\.1 <[._[:alnum:]-]+\[[[:xdigit:].:]{3,39}\]>: Client host rejected: Access denied;( from=<[^>]*> to=<[^[:space:]]+>)? proto=E?SMTP( helo=<[^[:space:]]+>)?$
 ^\w{3} [ :[:digit:]]{11} [._[:alnum:]-]+ postfix-mda/lmtp\[[[:digit:]]+\]: [[:xdigit:]]{10}: to=<[^[:space:]]+>,( orig_to=<[^[:space:]]+>,)? relay=[._[:alnum:]-]+\[private/dovecot-lmtpd\],( conn_use=[[:digit:]]+,)? delay=[.[:digit:]]+(, delays=([.[:digit:]]+/){3}[.[:digit:]]+)?(, dsn=2(\.[[:digit:]]+){2})?, status=sent \(2[[:digit:]][[:digit:]] .+\)$
-^\w{3} [ :[:digit:]]{11} [._[:alnum:]-]+ postfix-out/(error|n?qmgr|smtp)\[[[:digit:]]+\]: [[:alnum:]]+: to=<[^[:space:]]+>,( orig_to=<[^[:space:]]+>,)? relay=(none|[^[:space:]]+\[[[:digit:].]{7,15}\]:(25|587)),( conn_use=[[:digit:]]+,)? delay=[[:digit:].]+,( delays=[[:digit:]./]+,)?( dsn=[45]\.[[:digit:]]\.[[:digit:]],)? status=(deferred|undeliverable) \((delivery temporarily suspended: )?((lost connection with [^[:space:]]+|conversation with [^[:space:]]+ timed out) while (sending [[:alnum:]]+( [[:alnum:]]+)?|performing the (HELO|EHLO) handshake|receiving the initial server greeting|sending [[:alnum:]]+( [/[:alnum:]]+)?|sending end of data -- message may be sent more than once)|connect to [^[:space:]]+: (Connection timed out|read timeout|Connection refused)|host [^[:space:]]+ refused to talk to me: [45][[:digit:]][[:digit:]].*|Host or domain name not found. Name service errorfor name=[^[:space:]]+ type=MX: Host not found, try again|User unknown in virtual alias table)\)$
+^\w{3} [ :[:digit:]]{11} [._[:alnum:]-]+ postfix-\w+/(error|n?qmgr|smtp)\[[[:digit:]]+\]: [[:alnum:]]+: to=<[^[:space:]]+>,( orig_to=<[^[:space:]]+>,)? relay=(none|[^[:space:]]+\[[[:digit:].]{7,15}\]:[[:digit:]]+),( conn_use=[[:digit:]]+,)? delay=[[:digit:].]+,( delays=[[:digit:]./]+,)?( dsn=[45]\.[[:digit:]]\.[[:digit:]],)? status=(deferred|undeliverable) \((delivery temporarily suspended: )?((lost connection with [^[:space:]]+|conversation with [^[:space:]]+ timed out) while (sending [[:alnum:]]+( [[:alnum:]]+)?|performing the (HELO|EHLO) handshake|receiving the initial server greeting|sending [[:alnum:]]+( [/[:alnum:]]+)?|sending end of data -- message may be sent more than once)|connect to [^[:space:]]+: (Connection timed out|read timeout|Connection refused)|host [^[:space:]]+ refused to talk to me: [45][[:digit:]][[:digit:]].*|Host or domain name not found. Name service errorfor name=[^[:space:]]+ type=MX: Host not found, try again|User unknown in virtual alias table|host [^[:space:]]+\[[[:digit:].]{7,15}\] said: [45][[:digit:]][[:digit:]] [45](\.[[:digit:]]+){2} <[^>]+>: (Temporarily rejected\. Try again later\.|Recipient address rejected: (undeliverable|unverified) address:) .*)\)$
 ^\w{3} [ :[:digit:]]{11} [._[:alnum:]-]+ postfix-out/smtp\[[[:digit:]]+\]: [[:alnum:]]+: lost connection with [._[:alnum:]-]+\[[[:digit:].]{7,15}\] while (receiving the initial server greeting|sending [[:upper:] ]+)$
 ^\w{3} [ :[:digit:]]{11} [._[:alnum:]-]+ postfix-out/smtp\[[[:digit:]]+\]: [[:alnum:]]+: conversation with [^[:space:]]+ timed out while sending message body$
 ^\w{3} [ :[:digit:]]{11} [._[:alnum:]-]+ postfix-out/smtp\[[[:digit:]]+\]: [[:upper:][:digit:]]+: to=<[^[:space:]]+>(, orig_to=<[^[:space:]]+>)?, relay=[._[:alnum:]-]+\[[[:digit:].]{7,15}\](:[[:digit:]]{1,5})?,( conn_use=[[:digit:]]+,)? delay=[.[:digit:]]+(, delays=([.[:digit:]]+/){3}[.[:digit:]]+)?(, dsn=[45](\.[[:digit:]]+){2})?, status=(deferred|bounced|undeliverable|SOFTBOUNCE) \(host [._[:alnum:]-]+\[[[:digit:].]{7,15}\] said: [45][[:digit:]][[:digit:]][- ]+.* \(in reply to (HELO|EHLO|MAIL FROM|RCPT TO|DATA|end of DATA) command\)\)$
 ^\w{3} [ :[:digit:]]{11} [._[:alnum:]-]+ postfix-out/smtp\[[[:digit:]]+\]: connect to [^[:space:]]+: (read timeout|Connection (refused|timed out)|Network is unreachable|No route to host)( \(port [[:digit:]]+\))?$
-^\w{3} [ :[:digit:]]{11} [._[:alnum:]-]+ postfix-out/[ls]mtp\[[[:digit:]]+\]: [[:upper:][:digit:]]+: to=<[^[:space:]]+>, relay=[._[:alnum:]-]+\[[[:digit:].]{7,15}\](:[[:digit:]]{1,5})?, (conn_use=[[:digit:]]+, )?delay=[.[:digit:]]+(, delays=([.[:digit:]]+/){3}[.[:digit:]]+)?(, dsn=[45](\.[[:digit:]]+){2})?, status=(deferred|bounced|undeliverable) \(host [._[:alnum:]-]+\[[[:digit:].]{7,15}\] said: [45][[:digit:]][[:digit:]] .+ \(in reply to (HELO|EHLO|MAIL FROM|RCPT TO|end of DATA) command\)\)$
+^\w{3} [ :[:digit:]]{11} [._[:alnum:]-]+ postfix-out/[ls]mtp\[[[:digit:]]+\]: [[:upper:][:digit:]]+: to=<[^[:space:]]+>, relay=(none|[._[:alnum:]-]+\[[[:digit:].]{7,15}\](:[[:digit:]]{1,5})?), (conn_use=[[:digit:]]+, )?delay=[.[:digit:]]+(, delays=([.[:digit:]]+/){3}[.[:digit:]]+)?(, dsn=[45](\.[[:digit:]]+){2})?, status=(deferred|bounced|undeliverable) \((host [._[:alnum:]-]+\[[[:digit:].]{7,15}\] said: [45][[:digit:]][[:digit:]] .+ \(in reply to (HELO|EHLO|MAIL FROM|RCPT TO|end of DATA) command\)|connect to [^[:space:]]+: (read timeout|Connection (refused|timed out)|Network is unreachable|No route to host)( \(port [[:digit:]]+\))?)\)$
 ^\w{3} [ :[:digit:]]{11} [._[:alnum:]-]+ postfix-out/smtp\[[[:digit:]]+\]: [[:upper:][:digit:]]+: host [._[:alnum:]-]+\[[[:xdigit:].:]{3,39}\] said: [45][[:digit:]][[:digit:]][- ]+.* \(in reply to (HELO|EHLO|MAIL FROM|RCPT TO|(end of )?DATA) command\)$
 ^\w{3} [ :[:digit:]]{11} [._[:alnum:]-]+ postfix-(mda|out)/smtpd\[[[:digit:]]+\]: [[:xdigit:]]{10}: client=[._[:alnum:]-]+\[[[:xdigit:].:]{3,39}\], orig_queue_id=[[:xdigit:]]{10}, orig_client=[._[:alnum:]-]+\[[[:xdigit:].:]{3,39}\]$
 ^\w{3} [ :[:digit:]]{11} [._[:alnum:]-]+ postfix-out/smtp\[[[:digit:]]+\]: [A-Z[:digit:]]+: to=<[^[:space:]]+>,( orig_to=<[^[:space:]]+>,) relay=[^[:space:]]+, delay=[[:digit:]]+, status=deferred \(host [^[:space:]]+ said: [45][[:digit:]]{2} <[^[:space:]]*>: Recipient address rejected: Greylisted for [[:digit:]]+ (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} [ :[:digit:]]{11} [._[:alnum:]-]+ postfix-out/smtp\[[[:digit:]]+\]: [[:alnum:]]+: to=<.*>,( orig_to=<[^[:space:]]+>,)? relay=[^[:space:]]+\](:[[:digit:]]+)?,( conn_use=[[:digit:]]+,)? delay=[[:digit:].]+,( delays=[[:digit:]./]+,)?( dsn=4\.[[:digit:]]\.[[:digit:]],)? status=deferred \(host [^[:space:]]+\] said: .*$
 ^\w{3} [ :[:digit:]]{11} [._[:alnum:]-]+ postfix-(mda|out)/smtpd?\[[[:digit:]]+\]: warning: numeric domain name in resource data of MX record for [._[:alnum:]-]+: [[:xdigit:].:]{3,39}$
 ^\w{3} [ :[:digit:]]{11} [._[:alnum:]-]+ postfix-(msa|mx)/smtpd\[[[:digit:]]+\]: SSL_accept error from [._[:alnum:]-]+\[[[:xdigit:].:]{3,39}\]: (lost connection|Connection reset by peer|-?[[:digit:]]+|Connection timed out)$
 ^\w{3} [ :[:digit:]]{11} [._[:alnum:]-]+ postfix-msa/smtpd\[[[:digit:]]+\]: warning: TLS library problem: error:[[:xdigit:]]+:SSL routines:SSL3_READ_BYTES:(sslv3|tlsv1) alert (unknown ca|certificate unknown):s3_pkt.c:[0-9]+:SSL alert number [[:digit:]]+:$
 ^\w{3} [ :[:digit:]]{11} [._[:alnum:]-]+ postfix-(out|mx)/bounce\[[[:digit:]]+\]: [[:xdigit:]]+: sender (delay|non-delivery|delivery status) notification: [[:xdigit:]]+$
 ^\w{3} [ :[:digit:]]{11} [._[:alnum:]-]+ postfix-out/smtp\[[[:digit:]]+\]: [[:upper:][:digit:]]+: host [^[:space:]]+ refused to talk to me: [45][[:digit:]][[:digit:]].*$
 ^\w{3} [ :[:digit:]]{11} [._[:alnum:]-]+ postfix-out/smtp\[[[:digit:]]+\]: [[:upper:][:digit:]]+: enabling PIX <CRLF>\.<CRLF> workaround for [._[:alnum:]-]+\[[[:digit:].]{7,15}\](:[[:digit:]]{1,5})?$
 ^\w{3} [ :[:digit:]]{11} [._[:alnum:]-]+ postfix-out/smtp\[[[:digit:]]+\]: [[:upper:][:digit:]]+: enabling PIX workarounds:( (disable_esmtp|delay_dotcrlf))+ for [._[:alnum:]-]+\[[[:digit:].]{7,15}\](:[[:digit:]]{1,5})?$
 ^\w{3} [ :[:digit:]]{11} [._[:alnum:]-]+ postfix-out/smtp\[[[:digit:]]+\]: [[:upper:][:digit:]]+: to=<[^>]+>, relay=[-_.[:alnum:]]+, delay=[.[:digit:]]+(, delays=([.[:digit:]]+/){3}[.[:digit:]]+)?(, dsn=4(\.[[:digit:]]+){2})?, status=deferred \(connect to [._[:alnum:]-]+\[(unknown|[[:xdigit:].:]{3,39})\]:[[:digit:]]+: (Network is unreachable|No route to host)\)$
 ^\w{3} [ :[:digit:]]{11} [._[:alnum:]-]+ postfix-mx/smtpd\[[[:digit:]]+\]: [[:upper:][:digit:]]+: reject: RCPT from [^[:space:]]+: 4[[:digit:]][[:digit:]]( 4(\.[[:digit:]]){2}) <[^[:space:]]*>: Recipient address rejected: Greylisted( for [[:digit:]]+ (second|minute)s)?, see https?://[-_.:/[:alnum:]]+\.html?; from=<[^[:space:]]*> to=<[^[:space:]]+> proto=E?SMTP helo=<[^[:space:]]+>$
 ^\w{3} [ :[:digit:]]{11} [._[:alnum:]-]+ postfix-(mx|msa)/smtpd\[[[:digit:]]+\]: lost connection after [[:upper:]]+( \([[:digit:]]+ bytes\))? from [._[:alnum:]-]+\[(unknown|[[:xdigit:].:]{3,39})\]$
 ^\w{3} [ :[:digit:]]{11} [._[:alnum:]-]+ postfix-mx/smtpd\[[[:digit:]]+\]: [[:upper:][:digit:]]+: reject: (CONNECT|RCPT) from [^[:space:]]+: [45][[:digit:]][[:digit:]]( [45](\.[[:digit:]]){2})? Service unavailable; Client host \[([[:digit:].]{7,15}|[-._[:alnum:]]+)\] blocked using [._[:alnum:]-]+;( .+;)? (from=<[^[:space:]]*> to=<[^[:space:]]+> )?proto=E?SMTP( helo=<[^[:space:]]+>)?$
 ^\w{3} [ :[:digit:]]{11} [._[:alnum:]-]+ postfix-mx/smtpd\[[[:digit:]]+\]: [[:upper:][:digit:]]+: reject: RCPT from [^[:space:]]+: [[:digit:]]{3}( [45](\.[[:digit:]]){2})? <[^[:space:]]*>: Relay access denied; from=<[^[:space:]]*> to=<[^[:space:]]+> proto=E?SMTP helo=<[^[:space:]]+>$
 ^\w{3} [ :[:digit:]]{11} [._[:alnum:]-]+ postfix-mx/smtpd\[[[:digit:]]+\]: warning: ([-._[:alnum:]]+): RBL lookup error: Host or domain name not found\. Name service error for name=\1 type=A: Host not found, try again$
 ^\w{3} [ :[:digit:]]{11} [._[:alnum:]-]+ postfix-mx/(smtpd|tlsproxy)\[[[:digit:]]+\]: warning: TLS library problem: error:[[:xdigit:]]+:SSL routines:SSL2?3_(GET_RECORD:(decryption failed or bad record mac|wrong version number):s3_pkt\.c:[0-9]+:|READ_BYTES:(reason\([[:digit:]]+\)|sslv3 alert (unexpected message|bad certificate)):s3_pkt\.c:[[:digit:]]+:SSL alert number (0|10|42):|GET_CLIENT_HELLO:no shared cipher:s3_srvr.c:[0-9]+:|GET_CLIENT_HELLO:(unsupported protocol|no shared cipher):s2?3_srvr\.c:[0-9]+:)$
 ^\w{3} [ :[:digit:]]{11} [._[:alnum:]-]+ postfix-mx/smtpd\[[[:digit:]]+\]: (NOQUEUE|[[:xdigit:]]+): reject: [[:upper:]]+ from [^[:space:]]+: 554( 5\.1\.[01])? <[^[:space:]]*>: Recipient address rejected: User unknown in virtual alias table;( from=<[^[:space:]]*> to=<[^[:space:]]+>)? proto=E?SMTP( helo=<[^[:space:]]+>)?$
 ^\w{3} [ :[:digit:]]{11} [._[:alnum:]-]+ postfix-mx/smtpd\[[[:digit:]]+\]: [[:upper:][:digit:]]+: reject: RCPT from [^[:space:]]+: [45][[:digit:]][[:digit:]]( [45](\.[[:digit:]]){2})? <[^[:space:]]*>: Helo command rejected: .+; from=<[^[:space:]]*> to=<[^[:space:]]+> proto=E?SMTP helo=<[^[:space:]]+>$