The operation failed. The messaging interfaces have returned an unknown error. If the problem persists, restart Outlook. RRS feed

  • Question

  • This error occurs when I type in an address or copy an address from an earlier message.

    Any Ideas?

    Friday, February 27, 2015 5:41 PM


  • Hello,

    Did you try to repair Outlook/Office?

    Please take a look at the  similar forum thread. It suggests the following:
    •re-create an outlook profile
    •scanning/repairing the .pst files (because Outlook Data Files can be corrupted)

    Is this the case?

    Anyway, I'd suggest asking non-programming questions on the Outlook IT Pro Discussions forum instead.

    Friday, February 27, 2015 6:03 PM