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Werk #13669: Fix syntax error if display name is used in notifications on appliances

Component Notifications
Title Fix syntax error if display name is used in notifications on appliances
Date Feb 16, 2022
Level Trivial Change
Class Bug Fix
Compatibility Compatible - no manual interaction needed
Checkmk versions & editions
2.2.0b1 Checkmk Community, Checkmk Pro, Checkmk Ultimate, Checkmk Ultimate MT
2.1.0b1 Checkmk Community, Checkmk Pro, Checkmk Ultimate MT
2.0.0p21 Checkmk Community, Checkmk Pro, Checkmk Ultimate MT

This problem only occured on Checkmk appliances.

If the option "From" - "Display name" was used in notifications, mails could not be sent. The mail log showed "Bad recipient address syntax" errors instead.

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