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Exchange 2007 OWA Certificate Error

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  • Exchange 2007 OWA Certificate Error

    Dear friends
    I'm having an annoying error message in exchange 2007 when users tring to access OWA

    this image appears and they have t choose contiue every time they access there mailbox









    I tried this article http://technet.microsoft.com/en-us/l.../aa995942.aspx
    but at the last step i got the error message


    C073511D012122901AE8B1 was found but is not valid for usage with Exchange Server
    r (reason: PublicKeyUnsupportedSize).
    At line:1 char:27
    + Enable-ExchangeCertificate <<<< -thumbprint B613E8ED585F3FE026C073511D01
    901AE8B1 -services "IIS,POP,IMAP"

  • #2
    Re: Exchange 2007 OWA Certificate Error

    Hi,

    is it an own self signed certificate or a certificate of a trusted Certification Authority like thawte.com or verisign.com?

    Regards

    Comment


    • #3
      Re: Exchange 2007 OWA Certificate Error

      If your certificate is issued to webmail.example.com then that is NOT the same as webmail on its own. Therefore you will get certificate prompts.

      The only way to deal with this is to have a commercial SAN/UC certificate with the relevant names in it. The self signed certificates are designed as placeholders, not for production use.

      Simon.
      --
      Simon Butler
      Exchange MVP

      Blog: http://blog.sembee.co.uk/
      More Exchange Content: http://exchange.sembee.info/
      Exchange Resources List: http://exbpa.com/
      In the UK? Hire me: http://www.sembee.co.uk/

      Sembee is a registered trademark, used here with permission.

      Comment

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