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AnswerAllowing POP3-access through Forefront TMG

  • Saturday, October 17, 2009 5:08 PMReefdiver Users MedalsUsers MedalsUsers MedalsUsers MedalsUsers Medals
     
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    Hi experts,

    I have recently switched from SBS 2003 premium to WEBS 2008.

    Besides sending and receiving our regular company mails with exchange, we have some legacy mail accounts with our old provider, which we used to pull through the SBS PO3-connector and route to the corresponding exchange mail boxes (one POP3-account to one Eschange-user). According to my knowledge, WEBS lacks the POP3 connector I knew from SBS, but I have found a third-party-tool to do the job. The tool (Pullution from Sodacore) is installed on the Messaging server, and I have defined an access rule in Forefront TMG on the Security server to allow POP3-traffic to and from the Messaging server. However, Pullution can't connect through to pop.provider.de, no matter how I configure the access rule on the Security server (currently, I have copied the rules for SMTP and modified the protocoll). I used to have a similar rule on our ISA 2004 on the SBS to allow certain clients to collect POP3 through Outlook, so I don't really know why this rule on FTMG doesn't work.

    Maybe some expert here can lead me through the necessary steps & settings to get this to work.

    ANY help is greatly appreciated,

    thanks & greetings from Southern Germany

    Mark

    PS:  And yes, I know about the downsides of PO3, please no discussion about it - it's a political decission that "we have to" keep the old mail accounts.
     

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  • Saturday, October 17, 2009 5:12 PMMarc.GroteMVPUsers MedalsUsers MedalsUsers MedalsUsers MedalsUsers Medals
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    Hi,

    did you see something getting blocked in the TMG realtime logging?
    Try to test the connection with Telnet pop.provider.de 110
    Do get POP3 working through ISA/TMG:
    http://support.microsoft.com/kb/891234/en-us


    regards Marc
    www.nt-faq.de
    www.it-training-grote.de
    www.forefront-tmg.de
    • Marked As Answer byReefdiver Sunday, October 18, 2009 9:53 AM
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  • Sunday, October 18, 2009 9:59 AMReefdiver Users MedalsUsers MedalsUsers MedalsUsers MedalsUsers Medals
     
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    Hi Marc,

    thanks so much for your help. Yes, I've tried telnet and I could see that FTMG did not allow POP3-traffic through. I then deleted the access rule I've created and followed the instructions of KB 891234 from your link - and there it goes ;-)

    Again, thanks a bunch!

    Kind regards,
    Mark