Mail breaks quietly.
Watch the whole path.
A mail server rarely goes down — it degrades. The queue grows, bounces creep up, a blacklist entry appears, and users notice before you do. Wakora watches Postfix, Dovecot, Exim and Proxmox Mail Gateway natively: queues, rates, brute force, certificates, and whether the world still accepts your mail.
The queue is the truth
Queue depth and deferred counts are tracked continuously, with backlog alerts calibrated on live fleets rather than guessed. Delivery flow is read from the logs the servers already write: sent, deferred and bounced rates per host. A bounce storm — the classic signature of a compromised account or a broken relay — raises an incident while it is still a storm, not a postmortem.
Brute force, named and located
Failed logins against Dovecot, SMTP auth and FTP are counted from the authoritative log lines, folded by source address and enriched with country at ingest. The alert says who is knocking, from where, how many times — and your own rate-limit hits are graphed separately, so "my defenses are working" never reads as an emergency.
Deliverability: monitoring the other direction
The worst mail incident is the one where everything is green and nothing arrives. Deliverability checks validate SPF, DKIM and DMARC for your sending domains and query the major blacklists, so an RBL listing becomes an alert with a timestamp instead of a support ticket three days later. Certificates on SMTP and IMAP endpoints are watched like any other certificate — including the ones that expire on a port nobody browses.
Proxmox Mail Gateway
PMG hosts are recognized as what they are: mail flow, queues and ClamAV signature freshness — stale antivirus signatures on a live mail path are an alert, not trivia.
Log signals included
Mail logs ship with sensible level filtering and storm folding, searchable in the console, linked from every incident — the "what did the box say" button.
Alerts that wake someone
Queue backlog at 2 a.m. escalates through chat, SMS and a phone call that speaks — with on-call schedules deciding who picks up.
Frequently asked
Does Wakora read my users' mail?
Which mail software is supported out of the box?
Can it check whether my domain is blacklisted?
Put the mail box under watch today.
Three hosts free. The queue graph alone usually explains a lot.