Werk #4327: Allowing dollar sign in mail addresses now

Component	Setup
Title	Allowing dollar sign in mail addresses now
Date	Feb 7, 2017
Level	Trivial Change
Class	Bug Fix
Compatibility	Compatible - no manual interaction needed
Checkmk versions & editions	1.4.0b1 Checkmk Raw (CRE), Checkmk Enterprise (CEE), Checkmk MSP (CME) 1.2.8p17 Checkmk Raw (CRE), Checkmk Enterprise (CEE), Checkmk MSP (CME)

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