Queue, delivery & backup

Queue

Accepted mail runs through the check pipeline and is then delivered to your destination server. See the current status under Queue.

Retries & spool (backup)

If your destination server is briefly unreachable, mail is spooled and retried at intervals – nothing is lost. See spooled mail under Mail backup (spool); retry interval and maximum duration are configurable per tenant.

Destination failover

Per domain you can configure several destination servers with priority; the next one is used automatically if the first fails.