HealthPreflightSystem logBackupUsersSettings

Server

Health

Everything behind the six cards on Overview. Refreshes every 10 s.

01

Processes

ok
ProgramStateDetail
postfixrunningpid 41, uptime 18 days
opendkimrunningpid 39, uptime 18 days
journal-milterrunningpid 40, uptime 18 days
panelrunningpid 44, uptime 18 days
dmarc-ingestrunningpid 47, uptime 18 days
03

Sender check

ok
PeriodPanel not answeringMessages deferred
Today0 s0
Last 30 days4 s0
Last 12 months41 s3

The panel holds each message's From: against the application that sends it. While the panel does not answer, Postfix defers mail instead of accepting it unchecked. Time is counted only while Postfix itself was running. Counted since 2026-10-13.

05

Hostname and reverse DNS

ok
Hostname
mail.example.org
Lookup
→ 203.0.113.25
← mail.example.org
07

Machine

ok
ResourceUsageDetail
CPU12 %2 cores, load 0.21
Memory41 %812 MB of 1.9 GB
Network↓ 18 kB/s · ↑ 44 kB/seth0: 2.1 GB in, 6.4 GB out
02

Milter sockets

ok
MilterState
opendkim
inet:127.0.0.1:8891
ok
journal-milter
unix:/run/selfpost/journal.sock
ok
sender-check
unix:/run/selfpost/sender.sock
ok
rspamd · inbound spam filter
inet:antispam:11332
ok
04

TLS certificate

warn
Expires
2026-10-03 09:14 UTC
Names
mail.example.org

Expires in 12 days — renewal has not run.

Renewal normally runs 30 days before expiry. Check that port 80 is reachable and look for acme lines in the system log.

06

Notification mail

warn
RecordState
DKIM
sp2026._domainkey.mail.example.org
published
SPF
mail.example.org
missing

Sent from postmaster@mail.example.org. What to publish is under Settings.

08

Configuration

Safe to run at any time

Regenerates the OpenDKIM and Postfix configuration from the database and reloads both daemons. Use it after editing the files by hand, after restoring a backup, or when the running configuration looks out of step with the domain and application lists. It does not touch the queue or the TLS certificate.