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Exchange 2016 MAPI over HTTP with NTLM

HeikoSchuler

Hi all,

we are currently in the process of enabling the new MAPI over HTTP protocol on our Exchange Servers.

Therefore we added the /mapi/* and /MAPI/* subdirectories as exclusions in our WAF rule for Exchange as we had it before with the /RPC/* Directory.

Works all well with one caveeat - NTLM passthrough seems not to be possible, there is always a fallback to Basic authentication which leads to a Password prompt each time the user opens Outlook from external.

Any idea who to fix this or if it not possible in the current release (we are using the latest SFOS 16.05), in which release this will be supported?



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  • 0 in reply to HeikoSchuler

    Hi Steven

    we are facing the same problem of password prompts (i think it's only happening with outlook 2016 but i'm not sure)

     

    so what are you doing to "live" with the problem? are you simply re-opening outlook or reinserting a password? or do you have some sort of a workaround for now?

    thank you

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