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Authentication failed using (Clear) for IMAP Server [outlook.com] on Port 143

  • 1.  Authentication failed using (Clear) for IMAP Server [outlook.com] on Port 143

    Posted Sep 05, 2016 09:05 AM
      |   view attached

    I am trying to connect   Service desk 14.1 with Ofice365 and I get the following error "Imap Mail:Authentication failed using (Clear): Command received in Invalid state."

    Attachment(s)

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    Logs.txt.zip   892 B 1 version


  • 2.  Re: Authentication failed using (Clear) for IMAP Server [outlook.com] on Port 143

    Broadcom Employee
    Posted Sep 06, 2016 03:12 AM

    Hi Fundiswa Ntsheyiya ,

    This error seems to be generic, which means the user credentails are not being autheticated by mail server.
    # Check if the port 143 is enabled on the mail server, And also able to do TELNET on this port.

    # Check if your able to access the maileater box using webmail with the same credentials.

    # Verify if there are any multiple Mail Server, if so then move this specific mailbox to another Mail Server and check.

    ~Vinod.



  • 3.  Re: Authentication failed using (Clear) for IMAP Server [outlook.com] on Port 143

    Posted Sep 06, 2016 07:37 AM

    Change the Authentication Type (Security Level) to NTLM