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OWA / Exchange 2016 / Passthrough

Hi all,

We have managed to get OWA and ActiveSync email working through UTM 9.509-3, which connects to Exchange Server 2016. We have set the authentication mode to 'form' and the real webserver mode to 'basic' but it doesn't pass the logon details, we then get the Exchange OWA logon screen and have to re-enter our logon credentials. On the Exchange Server we have enabled basic authentication. Has anyone managed to get it pass the logon details? It's not the end of the world but annoying for people to have to double logon.

Thanks.

MG.

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0 Alexander Busch over 6 years ago

Did you follow https://community.sophos.com/kb/en-us/131787 ?

Best regards,
Alex

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0 MJG over 6 years ago in reply to Alexander Busch

I did yes. In that article in does not mention how you configure the reverse authentication.
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0 Alexander Busch over 6 years ago in reply to MJG

Do you use authentication against AD or LDAP?

Another point is the form of the credentials. What form is required for your exchange, UPN? And at Sophos you use just a user name?

That could be a mismatch of the format of the credentials

In Exchange you can set the format of the logon credentials:

Set-OwaVirtualDirectory „owa (Default Web Site)“ -LogonFormat Username -DefaultDomain domain.local

After that restart IIS:
iisreset

Best regards,
Alex

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0 MJG over 6 years ago in reply to Alexander Busch

Hi,

We use AD for authentication. Exchange has been set to: username and password, this is how users then login from Sophos.

Thanks.
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