The profile brings 16 checks. Vesana runs the checks over SSH — from a collector in that network or from the Vesana server itself.
| Check | Via | Default thresholds |
|---|---|---|
| Ping | Ping | |
| SMTP port (25) | TCP port | |
| Submission port (587) | TCP port | |
| IMAPS port (993) | TCP port | |
| Postfix service | SSH | |
| Dovecot service | SSH | |
| Mail queue | SSH | warn ≥ 50 · crit ≥ 500 |
| Rejected mail (last 5 min) | SSH | |
| Dovecot sessions | SSH | warn ≥ 500 · crit ≥ 2000 |
| DNS blacklist listing | SSH | crit ≥ 1 |
| SSL certificate (IMAPS) | TLS certificate | |
| SSL certificate (SMTPS 465) | TLS certificate | |
| Spam filter service | SSH | |
| Disk /var/mail | SSH | warn ≥ 80 · crit ≥ 90 |
| CPU | SSH | warn ≥ 80 · crit ≥ 95 |
| Memory | SSH | warn ≥ 85 · crit ≥ 95 |
Thresholds, intervals and checks can be changed per device without touching code. Profile improvements are published as new versions on the hub; existing installations receive them as an update. Profile data as of 2026-08-23.