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Werk #20061: HTML email notifications: show alert handler name and output again

Component Notifications
Title HTML email notifications: show alert handler name and output again
Date Jul 17, 2026
Level Trivial Change
Class Bug Fix
Compatibility Compatible - no manual interaction needed
Checkmk versions & editions
3.0.0b1
Not yet released
Checkmk Community, Checkmk Pro, Checkmk Ultimate, Checkmk Cloud, Checkmk Ultimate MT
2.5.0p10
Not yet released
Checkmk Community, Checkmk Pro, Checkmk Ultimate, Checkmk Cloud, Checkmk Ultimate MT
2.4.0p35
Not yet released
Checkmk Community, Checkmk Pro, Checkmk Ultimate, Checkmk Cloud, Checkmk Ultimate MT

When you received an HTML email notification triggered by an alert handler, the name and output of the alert handler were no longer shown.

Up to Checkmk 2.3 these two fields were part of the notification email. With the reworked HTML email layout in 2.4 they were accidentally dropped, and no configuration option could bring them back.

The event overview of an HTML email notification now shows the "Name of alert handler" and "Output of alert handler" again whenever the notification was triggered by an alert handler.

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