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OWA sneding problem with proxy

Hello,
We have a problem with external client behind a proxy : they can't send or reply email with Outlook Web Access ... "sending ... " stay a long time and they get an exchange error.

clients without proxy ( from my home for exemple ) can send, reply with no problem ...

I can't find solution. can anyone help me ?

thanks a lot


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Parents
  • The real problem is with the clent site or with OWA, but we had a similar issue beginning with Astaro V5.  Someone tried adding HTTP to the DNAT and packet filter for HTTPS.  I don't understand why that worked, but it still works today and still stops if HTTP isn't included on that particular Astaro.

    Cheers - Bob
     
    Sophos UTM Community Moderator
    Sophos Certified Architect - UTM
    Sophos Certified Engineer - XG
    Gold Solution Partner since 2005
    MediaSoft, Inc. USA
  • Hello,
    the real problem is with the client site :
    user can't send or reply email with owa ( client hava a proxy )

    without proxy (roadwarrior with 3G connection or home user without proxy are OK)
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