postfix.grok

# helper patterns
GREEDYDATA_NO_COLON [^:]*
GREEDYDATA_NO_SEMICOLON [^;]*
GREEDYDATA_NO_BRACKET [^<>]*
STATUS_WORD [\w-]*
IP_UNKNOWN unknown

# common postfix patterns
POSTFIX_QUEUEID ([0-9A-F]{6,}|[0-9a-zA-Z]{12,}|NOQUEUE)

POSTFIX_CLIENT %{HOSTNAME:postfix_client_hostname}?\[(%{IP_UNKNOWN:postfix_client_ip_unknown}|%{IP:postfix_client_ip})\](:%{INT:postfix_client_port})?
POSTFIX_RELAY %{HOSTNAME:postfix_relay_hostname}?\[(%{IP:postfix_relay_ip}|%{DATA:postfix_relay_service})\](:%{INT:postfix_relay_port})?|%{WORD:postfix_relay_service}
POSTFIX_SMTP_STAGE (CONNECT|HELO|EHLO|STARTTLS|AUTH|MAIL( FROM)?|RCPT( TO)?|(end of )?DATA|BDAT|RSET|UNKNOWN|END-OF-MESSAGE|VRFY|\.)
POSTFIX_ACTION (accept|defer|discard|filter|header-redirect|milter-reject|reject|reject_warning)
POSTFIX_STATUS_CODE \d{3}
POSTFIX_STATUS_CODE_ENHANCED \d\.\d+\.\d+
POSTFIX_DNSBL_MESSAGE Service unavailable; .* \[%{GREEDYDATA:postfix_status_data}\] %{GREEDYDATA:postfix_status_message};
POSTFIX_PS_ACCESS_ACTION (DISCONNECT|DENYLISTED|BLACKLISTED|ALLOWLISTED|WHITELISTED|ALLOWLIST VETO|WHITELIST VETO|PASS NEW|PASS OLD)
POSTFIX_PS_VIOLATION (BARE NEWLINE|COMMAND (TIME|COUNT|LENGTH) LIMIT|COMMAND PIPELINING|DNSBL|HANGUP|NON-SMTP COMMAND|PREGREET)
POSTFIX_KEYVALUE_DATA [\w-]+=[^;]*
POSTFIX_KEYVALUE %{POSTFIX_QUEUEID:postfix_queueid}: %{POSTFIX_KEYVALUE_DATA:postfix_keyvalue_data}


POSTFIX_TLSCONN %{DATA:postfix_tls_trustlevel} TLS connection established (to %{POSTFIX_RELAY}|from %{POSTFIX_CLIENT}): %{DATA:postfix_tls_version} with cipher %{DATA:postfix_tls_cipher} \(%{DATA:postfix_tls_cipher_size} bits\)( key-exchange %{DATA:postfix_tls_key_exchange} server-signature %{DATA:postfix_tls_server_signature} \((%{INT:postfix_tls_server_signature_size} bits|(?<postfix_tls_server_signature_curve>[PBK]-\d+))\) server-digest %{DATA:postfix_tls_server_digest})?
POSTFIX_TLSVERIFICATION certificate verification failed for %{POSTFIX_RELAY}: %{GREEDYDATA:postfix_tls_error}

POSTFIX_DELAYS %{NUMBER:postfix_delay_before_qmgr}/%{NUMBER:postfix_delay_in_qmgr}/%{NUMBER:postfix_delay_conn_setup}/%{NUMBER:postfix_delay_transmission}
POSTFIX_LOSTCONN (Connection timed out|No route to host|Connection refused|Network is unreachable|lost connection|timeout|SSL_accept error|-1|Address not available|Operation timed out|Address not available|Operation timed out|bare <LF> received)
POSTFIX_LOSTCONN_REASONS (receiving the initial server greeting|sending message body|sending end of data -- message may be sent more than once|sending %{POSTFIX_SMTP_STAGE:postfix_smtp_stage})
POSTFIX_PROXY_MESSAGE (%{POSTFIX_STATUS_CODE:postfix_proxy_status_code} )?(%{POSTFIX_STATUS_CODE_ENHANCED:postfix_proxy_status_code_enhanced})?.*
POSTFIX_COMMAND_COUNTER_DATA (helo=(%{INT:postfix_cmd_helo_accepted}/)?%{INT:postfix_cmd_helo} )?(ehlo=(%{INT:postfix_cmd_ehlo_accepted}/)?%{INT:postfix_cmd_ehlo} )?(starttls=(%{INT:postfix_cmd_starttls_accepted}/)?%{INT:postfix_cmd_starttls} )?(auth=(%{INT:postfix_cmd_auth_accepted}/)?%{INT:postfix_cmd_auth} )?(mail=(%{INT:postfix_cmd_mail_accepted}/)?%{INT:postfix_cmd_mail} )?(rcpt=(%{INT:postfix_cmd_rcpt_accepted}/)?%{INT:postfix_cmd_rcpt} )?(bdat=(%{INT:postfix_cmd_bdat_accepted}/)?%{INT:postfix_cmd_bdat} )?(data=(%{INT:postfix_cmd_data_accepted}/)?%{INT:postfix_cmd_data} )?(rset=(%{INT:postfix_cmd_rset_accepted}/)?%{INT:postfix_cmd_rset} )?(noop=(%{INT:postfix_cmd_noop_accepted}/)?%{INT:postfix_cmd_noop} )?(quit=(%{INT:postfix_cmd_quit_accepted}/)?%{INT:postfix_cmd_quit} )?(unknown=(%{INT:postfix_cmd_unknown_accepted}/)?%{INT:postfix_cmd_unknown} )?commands=(%{INT:postfix_cmd_count_accepted}/)?%{INT:postfix_cmd_count}


# warning patterns
POSTFIX_WARNING_WITH_KV (%{POSTFIX_QUEUEID:postfix_queueid}: )?(?<postfix_message_level>(warning|fatal|info)): (%{POSTFIX_QUEUEID:postfix_queueid}: )?(%{POSTFIX_CLIENT}: )?%{GREEDYDATA:postfix_message}; %{POSTFIX_KEYVALUE_DATA:postfix_keyvalue_data}
POSTFIX_WARNING_WITHOUT_KV (%{POSTFIX_QUEUEID:postfix_queueid}: )?(?<postfix_message_level>(warning|fatal|info)): (%{POSTFIX_QUEUEID:postfix_queueid}: )?(%{POSTFIX_CLIENT}: )?%{GREEDYDATA:postfix_message}
POSTFIX_WARNING %{POSTFIX_WARNING_WITH_KV}|%{POSTFIX_WARNING_WITHOUT_KV}

# smtpd patterns
POSTFIX_SMTPD_CONNECT connect from %{POSTFIX_CLIENT}
POSTFIX_SMTPD_DISCONNECT disconnect from %{POSTFIX_CLIENT}( %{GREEDYDATA:postfix_command_counter_data})?
POSTFIX_SMTPD_LOSTCONN %{POSTFIX_LOSTCONN:postfix_smtpd_lostconn_data}( after %{POSTFIX_SMTP_STAGE:postfix_smtp_stage}( \(%{INT} bytes\))?)? from %{POSTFIX_CLIENT}(: %{GREEDYDATA:postfix_smtpd_lostconn_reason})?
POSTFIX_SMTPD_NOQUEUE %{POSTFIX_QUEUEID:postfix_queueid}: %{POSTFIX_ACTION:postfix_action}: %{POSTFIX_SMTP_STAGE:postfix_smtp_stage} from %{POSTFIX_CLIENT}:( %{POSTFIX_STATUS_CODE:postfix_status_code} %{POSTFIX_STATUS_CODE_ENHANCED:postfix_status_code_enhanced})?( <%{DATA:postfix_status_data}>:)? (%{POSTFIX_DNSBL_MESSAGE}|%{GREEDYDATA:postfix_status_message};) %{POSTFIX_KEYVALUE_DATA:postfix_keyvalue_data}
POSTFIX_SMTPD_PIPELINING improper command pipelining after %{POSTFIX_SMTP_STAGE:postfix_smtp_stage} from %{POSTFIX_CLIENT}: %{GREEDYDATA:postfix_improper_pipelining_data}
POSTFIX_SMTPD_PROXY proxy-%{POSTFIX_ACTION:postfix_proxy_result}: (%{POSTFIX_SMTP_STAGE:postfix_proxy_smtp_stage}): %{POSTFIX_PROXY_MESSAGE:postfix_proxy_message}; %{POSTFIX_KEYVALUE_DATA:postfix_keyvalue_data}

# cleanup patterns
POSTFIX_CLEANUP_MILTER %{POSTFIX_QUEUEID:postfix_queueid}: milter-%{POSTFIX_ACTION:postfix_milter_result}: %{GREEDYDATA:postfix_milter_message}; %{GREEDYDATA_NO_COLON:postfix_keyvalue_data}(: %{GREEDYDATA:postfix_milter_data})?
POSTFIX_CLEANUP_PREPEND_TYPE (header|body)
POSTFIX_CLEANUP_PREPEND %{POSTFIX_QUEUEID:postfix_queueid}: prepend: %{POSTFIX_CLEANUP_PREPEND_TYPE:postfix_prepend_type} %{GREEDYDATA:postfix_prepend_trigger} from %{POSTFIX_CLIENT}; %{GREEDYDATA_NO_COLON:postfix_keyvalue_data}: %{GREEDYDATA:postfix_prepend_value}
POSTFIX_CLEANUP_MESSAGEID %{POSTFIX_QUEUEID:postfix_queueid}: message-id=<?%{GREEDYDATA_NO_BRACKET:postfix_message-id}>?

# qmgr patterns
POSTFIX_QMGR_MESSAGE (removed|skipped, still being delivered)
POSTFIX_QMGR_INFO %{POSTFIX_QUEUEID:postfix_queueid}: %{POSTFIX_QMGR_MESSAGE:postfix_message}
POSTFIX_QMGR_ACTIVE %{POSTFIX_QUEUEID:postfix_queueid}: %{POSTFIX_KEYVALUE_DATA:postfix_keyvalue_data} \(queue active\)
POSTFIX_QMGR_EXPIRED %{POSTFIX_QUEUEID:postfix_queueid}: from=<%{DATA:postfix_from}>, status=%{STATUS_WORD:postfix_status}, returned to sender

# pipe patterns
POSTFIX_PIPE_ANY %{POSTFIX_QUEUEID:postfix_queueid}: %{POSTFIX_KEYVALUE_DATA:postfix_keyvalue_data}, status=%{STATUS_WORD:postfix_status} \(%{GREEDYDATA:postfix_pipe_response}\)

# error patterns
POSTFIX_ERROR_ANY %{POSTFIX_QUEUEID:postfix_queueid}: %{POSTFIX_KEYVALUE_DATA:postfix_keyvalue_data}, status=%{STATUS_WORD:postfix_status} \(%{GREEDYDATA:postfix_error_response}\)

# discard patterns
POSTFIX_DISCARD_ANY %{POSTFIX_QUEUEID:postfix_queueid}: %{POSTFIX_KEYVALUE_DATA:postfix_keyvalue_data} status=%{STATUS_WORD:postfix_status} %{GREEDYDATA}

# postsuper patterns
POSTFIX_POSTSUPER_ACTIONS (removed|requeued|placed on hold|released from hold)
POSTFIX_POSTSUPER_ACTION %{POSTFIX_QUEUEID:postfix_queueid}: %{POSTFIX_POSTSUPER_ACTIONS:postfix_postsuper_action}
POSTFIX_POSTSUPER_SUMMARY_ACTIONS (Deleted|Requeued|Placed on hold|Released from hold)
POSTFIX_POSTSUPER_SUMMARY %{POSTFIX_POSTSUPER_SUMMARY_ACTIONS:postfix_postsuper_summary_action}: %{NUMBER:postfix_postsuper_summary_count} messages?

# postscreen patterns
POSTFIX_PS_CONNECT CONNECT from %{POSTFIX_CLIENT} to \[%{IP:postfix_server_ip}\]:%{INT:postfix_server_port}
POSTFIX_PS_ACCESS %{POSTFIX_PS_ACCESS_ACTION:postfix_postscreen_access} %{POSTFIX_CLIENT}
POSTFIX_PS_NOQUEUE %{POSTFIX_SMTPD_NOQUEUE}
POSTFIX_PS_TOOBUSY NOQUEUE: reject: CONNECT from %{POSTFIX_CLIENT}: %{GREEDYDATA:postfix_postscreen_toobusy_data}
POSTFIX_PS_DNSBL %{POSTFIX_PS_VIOLATION:postfix_postscreen_violation} rank %{INT:postfix_postscreen_dnsbl_rank} for %{POSTFIX_CLIENT}
POSTFIX_PS_CACHE cache %{DATA} full cleanup: retained=%{NUMBER:postfix_postscreen_cache_retained} dropped=%{NUMBER:postfix_postscreen_cache_dropped} entries
POSTFIX_PS_VIOLATIONS %{POSTFIX_PS_VIOLATION:postfix_postscreen_violation}( %{INT})?( after %{NUMBER:postfix_postscreen_violation_time})? from %{POSTFIX_CLIENT}(( after %{POSTFIX_SMTP_STAGE:postfix_smtp_stage})?(: %{GREEDYDATA:postfix_postscreen_data})?| in tests (after|before) SMTP handshake)

# dnsblog patterns
POSTFIX_DNSBLOG_LISTING addr %{IP:postfix_client_ip} listed by domain %{HOSTNAME:postfix_dnsbl_domain} as %{IP:postfix_dnsbl_result}

# tlsproxy patterns
POSTFIX_TLSPROXY_CONN (DIS)?CONNECT( from)? %{POSTFIX_CLIENT}

# anvil patterns
POSTFIX_ANVIL_CONN_RATE statistics: max connection rate %{NUMBER:postfix_anvil_conn_rate}/(?<postfix_anvil_conn_period>\d+[smhd]) for \(%{DATA:postfix_service}:(%{IP_UNKNOWN:postfix_client_ip_unknown}|%{IP:postfix_client_ip})\) at %{SYSLOGTIMESTAMP:postfix_anvil_timestamp}
POSTFIX_ANVIL_CONN_CACHE statistics: max cache size %{NUMBER:postfix_anvil_cache_size} at %{SYSLOGTIMESTAMP:postfix_anvil_timestamp}
POSTFIX_ANVIL_CONN_COUNT statistics: max connection count %{NUMBER:postfix_anvil_conn_count} for \(%{DATA:postfix_service}:(%{IP_UNKNOWN:postfix_client_ip_unknown}|%{IP:postfix_client_ip})\) at %{SYSLOGTIMESTAMP:postfix_anvil_timestamp}

# smtp patterns
POSTFIX_SMTP_DELIVERY %{POSTFIX_KEYVALUE} status=%{STATUS_WORD:postfix_status}( \(%{GREEDYDATA:postfix_smtp_response}\))?
POSTFIX_SMTP_CONNERR connect to %{POSTFIX_RELAY}: %{POSTFIX_LOSTCONN:postfix_smtp_lostconn_data}
POSTFIX_SMTP_SSLCONNERR SSL_connect error to %{POSTFIX_RELAY}: %{POSTFIX_LOSTCONN:postfix_smtp_lostconn_data}
POSTFIX_SMTP_LOSTCONN %{POSTFIX_QUEUEID:postfix_queueid}: %{POSTFIX_LOSTCONN:postfix_smtp_lostconn_data} with %{POSTFIX_RELAY}( while %{POSTFIX_LOSTCONN_REASONS:postfix_smtp_lostconn_reason})?
POSTFIX_SMTP_TIMEOUT %{POSTFIX_QUEUEID:postfix_queueid}: conversation with %{POSTFIX_RELAY} timed out( while %{POSTFIX_LOSTCONN_REASONS:postfix_smtp_lostconn_reason})?
POSTFIX_SMTP_RELAYERR %{POSTFIX_QUEUEID:postfix_queueid}: host %{POSTFIX_RELAY} said: %{GREEDYDATA:postfix_smtp_response} \(in reply to %{POSTFIX_SMTP_STAGE:postfix_smtp_stage} command\)
POSTFIX_SMTP_RELAYREFUSED %{POSTFIX_QUEUEID:postfix_queueid}: host %{POSTFIX_RELAY} refused to talk to me: %{GREEDYDATA:postfix_smtp_response}
POSTFIX_SMTP_SSLAUTHERR %{POSTFIX_QUEUEID:postfix_queueid}: SASL authentication failed; server %{POSTFIX_RELAY} said: %{GREEDYDATA:postfix_smtp_response}
POSTFIX_SMTP_UTF8 host %{POSTFIX_RELAY} offers SMTPUTF8 support, but not 8BITMIME
POSTFIX_SMTP_PIX %{POSTFIX_QUEUEID:postfix_queueid}: enabling PIX workarounds: %{DATA:postfix_pix_workaround} for %{POSTFIX_RELAY}

# master patterns
POSTFIX_MASTER_START (daemon started|reload) -- version %{DATA:postfix_version}, configuration %{PATH:postfix_config_path}
POSTFIX_MASTER_EXIT terminating on signal %{INT:postfix_termination_signal}

# bounce patterns
POSTFIX_BOUNCE_NOTIFICATION %{POSTFIX_QUEUEID:postfix_queueid}: (?<postfix_bounce_recipient>(sender|postmaster)) (?<postfix_bounce_reason>(non-delivery|delivery status|delay)) notification: %{POSTFIX_QUEUEID:postfix_bounce_queueid}

# scache patterns
POSTFIX_SCACHE_LOOKUPS statistics: (address|domain) lookup hits=%{INT:postfix_scache_hits} miss=%{INT:postfix_scache_miss} success=%{INT:postfix_scache_success}%
POSTFIX_SCACHE_SIMULTANEOUS statistics: max simultaneous domains=%{INT:postfix_scache_domains} addresses=%{INT:postfix_scache_addresses} connection=%{INT:postfix_scache_connection}
POSTFIX_SCACHE_TIMESTAMP statistics: start interval %{SYSLOGTIMESTAMP:postfix_scache_timestamp}

# verify patterns
POSTFIX_VERIFY_CACHE cache %{DATA} (?<postfix_verify_cleanup_type>(full|partial)) cleanup: retained=%{INT:postfix_verify_cache_retained} dropped=%{INT:postfix_verify_cache_dropped} entries

# local patterns
POSTFIX_LOCAL_DELIVERY %{POSTFIX_KEYVALUE} status=%{STATUS_WORD:postfix_status}( \(%{GREEDYDATA:postfix_local_response}\))?

# aggregate all patterns
POSTFIX_SMTPD %{POSTFIX_SMTPD_CONNECT}|%{POSTFIX_SMTPD_DISCONNECT}|%{POSTFIX_SMTPD_LOSTCONN}|%{POSTFIX_SMTPD_NOQUEUE}|%{POSTFIX_SMTPD_PIPELINING}|%{POSTFIX_TLSCONN}|%{POSTFIX_WARNING}|%{POSTFIX_SMTPD_PROXY}|%{POSTFIX_KEYVALUE}
POSTFIX_CLEANUP %{POSTFIX_CLEANUP_MESSAGEID}|%{POSTFIX_CLEANUP_MILTER}|%{POSTFIX_CLEANUP_PREPEND}|%{POSTFIX_WARNING}|%{POSTFIX_KEYVALUE}
POSTFIX_QMGR %{POSTFIX_QMGR_INFO}|%{POSTFIX_QMGR_ACTIVE}|%{POSTFIX_QMGR_EXPIRED}|%{POSTFIX_WARNING}
POSTFIX_PIPE %{POSTFIX_PIPE_ANY}
POSTFIX_POSTSCREEN %{POSTFIX_PS_CONNECT}|%{POSTFIX_PS_ACCESS}|%{POSTFIX_PS_NOQUEUE}|%{POSTFIX_PS_TOOBUSY}|%{POSTFIX_PS_CACHE}|%{POSTFIX_PS_DNSBL}|%{POSTFIX_PS_VIOLATIONS}|%{POSTFIX_WARNING}
POSTFIX_DNSBLOG %{POSTFIX_DNSBLOG_LISTING}|%{POSTFIX_WARNING}
POSTFIX_ANVIL %{POSTFIX_ANVIL_CONN_RATE}|%{POSTFIX_ANVIL_CONN_CACHE}|%{POSTFIX_ANVIL_CONN_COUNT}
POSTFIX_SMTP %{POSTFIX_SMTP_DELIVERY}|%{POSTFIX_SMTP_CONNERR}|%{POSTFIX_SMTP_SSLCONNERR}|%{POSTFIX_SMTP_SSLAUTHERR}|%{POSTFIX_SMTP_LOSTCONN}|%{POSTFIX_SMTP_TIMEOUT}|%{POSTFIX_SMTP_RELAYERR}|%{POSTFIX_SMTP_RELAYREFUSED}|%{POSTFIX_TLSCONN}|%{POSTFIX_WARNING}|%{POSTFIX_SMTP_UTF8}|%{POSTFIX_TLSVERIFICATION}|%{POSTFIX_SMTP_PIX}
POSTFIX_DISCARD %{POSTFIX_DISCARD_ANY}|%{POSTFIX_WARNING}
POSTFIX_LMTP %{POSTFIX_SMTP}
POSTFIX_PICKUP %{POSTFIX_KEYVALUE}
POSTFIX_TLSPROXY %{POSTFIX_TLSPROXY_CONN}|%{POSTFIX_WARNING}
POSTFIX_MASTER %{POSTFIX_MASTER_START}|%{POSTFIX_MASTER_EXIT}|%{POSTFIX_WARNING}
POSTFIX_BOUNCE %{POSTFIX_BOUNCE_NOTIFICATION}
POSTFIX_SENDMAIL %{POSTFIX_WARNING}
POSTFIX_POSTDROP %{POSTFIX_WARNING}
POSTFIX_SCACHE %{POSTFIX_SCACHE_LOOKUPS}|%{POSTFIX_SCACHE_SIMULTANEOUS}|%{POSTFIX_SCACHE_TIMESTAMP}
POSTFIX_TRIVIAL_REWRITE %{POSTFIX_WARNING}
POSTFIX_TLSMGR %{POSTFIX_WARNING}
POSTFIX_LOCAL %{POSTFIX_LOCAL_DELIVERY}|%{POSTFIX_WARNING}
POSTFIX_VIRTUAL %{POSTFIX_SMTP_DELIVERY}
POSTFIX_ERROR %{POSTFIX_ERROR_ANY}
POSTFIX_POSTSUPER %{POSTFIX_POSTSUPER_ACTION}|%{POSTFIX_POSTSUPER_SUMMARY}
POSTFIX_POSTMAP %{POSTFIX_WARNING}
POSTFIX_SCRIPT %{POSTFIX_WARNING}
POSTFIX_VERIFY %{POSTFIX_VERIFY_CACHE}