Werk #11698: Nullmailer check monitors failed queue

Component	Checks & agents
Title	Nullmailer check monitors failed queue
Date	Nov 30, 2020
Level	Trivial Change
Class	New Feature
Compatibility	Compatible - no manual interaction needed
Checkmk versions & editions	2.0.0i2 Checkmk Community, Checkmk Pro, Checkmk Ultimate MT 2.0.0b2 Checkmk Community, Checkmk Pro, Checkmk Ultimate MT

The failed queue /var/spool/nullmailer/failed will additionally be monitored.

To the list of all Werks