Event ID - 2204

Event Id2204
SourceSystem
DescriptionThe logon processor did not add the message alias.
Event InformationCause:
User name is already established as a message alias. Either the user name and computer name are the same, or the user name is in use as a message alias on another computer on the network. If the user name is being used as a message alias on another computer, messages at the local workstation using this name cannot be received.

Resolution:
If the user name is being used as a message alias on another computer, delete the alias on that computer. Then log on again at this computer.
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