Issue
When an alarm in Xenta Server or a Xenta device under a Xenta server that are configured to send alarms via mail, the mail receivers will get an extra mail when that alarm is acknowledged.
Environment
TAC Vista
TAC Xenta Server
Cause
This behaviour is due to a bug in earlier versions of the Vista Server software
Resolution
There is no known workaround to this issue, but it is fixed from Vista v5.1.3 (and later versions), i.e. an upgrade will solve it.