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Exchange 2003 POP and IMAP Services Not Authenticating RRS feed

  • Question

  • Hello All

    I've a standalone Exchange 2003 on which 98% of the Users are using MS Outlook, there are just a few Top Management Users who use Apple Mac and therefore for their convenience, I enabled POP and IMAP Services without SSL since they only use it within the LAN.

    It was working all right until I upgraded to Exchange 2003 SP2. After the upgrade all LAN clients still continue to work without any issues, but the IMAP and POP authentication just don't work. They keep popping back the USERNAME/PASSWORD dialogue window. The same Users when you check through Web Access, it works but not on POP/IMAP.

    No settings have been changed on the Server Pre or Post SP2 installation. The Services status is running and they are set to automatic start. If you stop and start the Services too, there's are no changes. Any idea what's causing this...?

     

    Thanks

    Blue

    Tuesday, September 13, 2011 6:17 AM

Answers

  • can you check outlook settings , if they might have got upgraded by some office sp level.

    You can also check if POP/Imap is working from some other clients like outlook express from some older systems

    • Marked as answer by Gen Lin Friday, September 23, 2011 9:47 AM
    Tuesday, September 13, 2011 6:37 AM
  • Do a telnet test and see if you can authentication. When testing also try specifying the upn as the logon.

    From a client machine

    telnet exchangeserver 110
    Server:> +OK Microsoft Exchange Server 2003 POP3 server version 6.5.7217.0 (secundapin.corpdomain.extest.microsoft.com) ready.
    Client:> user johndoe@internaldomain.com
    Server:> +OK
    Client:> pass j0hnsPa$$word
    Server:> +OK User successfully logged on.

    telnet exchangeserver 143
    Server:>
    * OK Microsoft Exchange Server 2003 IMAP4rev1 server version 6.5.7217.0 (secundapin.corpdomain.extest.microsoft.com) ready.
    Client:>. login johndoe@internaldomain j0hnsPa$$word
    Server>. OK LOGIN completed.

     

    Understanding login strings with POP3/IMAP

    http://blogs.technet.com/b/exchange/archive/2004/03/31/105275.aspx


    James Chong MCITP | EA | EMA; MCSE | M+, S+ Security+, Project+, ITIL msexchangetips.blogspot.com
    • Marked as answer by Gen Lin Friday, September 23, 2011 9:47 AM
    Tuesday, September 13, 2011 4:39 PM
  • Hi,

    1. Make sure that the authentication method is set to Basic without SSL/TLS.

    2. Create a new outlook profile and see if the issue persists.

    • Marked as answer by Gen Lin Friday, September 23, 2011 9:47 AM
    Thursday, September 15, 2011 10:12 AM

All replies

  • Hi Blue,

    you tried to reconfigure the pop or IMAP after sp2 upgrade and you are getting the password prompt?

     

    Tuesday, September 13, 2011 6:21 AM
  • can you check outlook settings , if they might have got upgraded by some office sp level.

    You can also check if POP/Imap is working from some other clients like outlook express from some older systems

    • Marked as answer by Gen Lin Friday, September 23, 2011 9:47 AM
    Tuesday, September 13, 2011 6:37 AM
  • Do a telnet test and see if you can authentication. When testing also try specifying the upn as the logon.

    From a client machine

    telnet exchangeserver 110
    Server:> +OK Microsoft Exchange Server 2003 POP3 server version 6.5.7217.0 (secundapin.corpdomain.extest.microsoft.com) ready.
    Client:> user johndoe@internaldomain.com
    Server:> +OK
    Client:> pass j0hnsPa$$word
    Server:> +OK User successfully logged on.

    telnet exchangeserver 143
    Server:>
    * OK Microsoft Exchange Server 2003 IMAP4rev1 server version 6.5.7217.0 (secundapin.corpdomain.extest.microsoft.com) ready.
    Client:>. login johndoe@internaldomain j0hnsPa$$word
    Server>. OK LOGIN completed.

     

    Understanding login strings with POP3/IMAP

    http://blogs.technet.com/b/exchange/archive/2004/03/31/105275.aspx


    James Chong MCITP | EA | EMA; MCSE | M+, S+ Security+, Project+, ITIL msexchangetips.blogspot.com
    • Marked as answer by Gen Lin Friday, September 23, 2011 9:47 AM
    Tuesday, September 13, 2011 4:39 PM
  • Hi,

    1. Make sure that the authentication method is set to Basic without SSL/TLS.

    2. Create a new outlook profile and see if the issue persists.

    • Marked as answer by Gen Lin Friday, September 23, 2011 9:47 AM
    Thursday, September 15, 2011 10:12 AM