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3492451 - SMTP service can't be activated with error "NiListen failed for 25 (rc=-4): NIESERV_USED" in ICM trace


SMTP service can't be activated in ICM. 

The following error has been outputted in dev_icm trace: 

NiListen failed for 25 (rc=-4): NIESERV_USED



ABAP platform all versions ; SAP NetWeaver all versions ; SAP S/4HANA all versions


SMTP, ICM, NiListen failed for 25 (rc=-4), NIESERV_USED, port 25, You might not have the permissions to bind the service.  , KBA , BC-CST-IC , Internet Communication Manager , Problem

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