Monitoring VGER's ZMailer MTA

Live counter snapshot

Below various counter values may be zero, that may mean that:

• That counter has not had use
• There is no code to count that counter (yet)

Volumes are in kilobytes ("-kB" suffix), all others are single events.

Gauges are marked with "-G" suffix, all others are counters.

Some day there will be a man-page: mailq-M(5)

ZMailer has several subsystems:

• SYS: non-subsystem data
• SS: Smtpserver
• RT: Router
• SC: scheduler
• TA-*: transport agents:
  • TA-SMTP: Outgoing SMTP
  • TA-SMCM: Sendmail-Compatible-Mailer
  • TA-MBOX: Delivery to std UNIX mailboxes, and to pipes
  • TA-HOLD: Routing produced 'deferred' results, addresses go to 'hold' for latter retry
  • TA-ERRM: Messages/recipients routed directly to an error channel
  • TA-EXPI: Messages/recipients, which sysadmin decided to expire from the outgoing queue via special tool
  • TA-RERT: Messages/recipients, which sysadmin decided to reroute from the outgoing queue via special tool