Werk #16375: Rule "Check Email": Allow all makros

Component Checks & agents
Title Rule "Check Email": Allow all makros
Date Jan 15, 2024
Checkmk Edition Checkmk Raw (CRE)
Checkmk Version 2.1.0p39 2.2.0p20 2.3.0b1
Level Trivial Change
Class Bug Fix
Compatibility Compatible - no manual interaction needed

The ruleset "Check Email" recently featured stricter validation. As a result, macros (like $HOSTNAME$) could not be used anymore. This was partially compensated for in #15203, but this was still too restrictive. Users can now configure validated host adresses or unvalidated strings containing macros.

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