Exchange 2003 HTTP 501 errors, Server ActiveSync

Posted on 2007-10-03
Last Modified: 2012-05-05
The following message keeps popping up on our Exchange 2003 server, stand alone on Windows 2003. The strange part is that the user listed is me, and we do not use ActiveSync for any devices, no push technology, etc. It's a pretty standard Exchange config, with OWA, and everything works fine, just want to troubleshoot and eliminate this error.

Source: Server ActiveSync
Event_ID: 3005

Unexpected Exchange mailbox Server error: Server: [] User: [] HTTP status code: [501]. Verify that the Exchange mailbox Server is working correctly.
Question by:welshiv
    LVL 104

    Accepted Solution

    If you are not using ActiveSync then turn the options off in ESM. I have only ever seen that error generated by an ActiveSync session going on. If someone has started to use one without telling you then disabling EAS in ESM will stop that.


    Author Comment

    Which options would need to be turned off in ESM?
    LVL 104

    Expert Comment

    Everything in ESM, Global Settings, Mobile Services.


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