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Outlook Windows clients and such are not supported with ADFS and on-prem Exchange. I believe that is what you are asking?
On-Prem Exchange Server 2016 ADFS Integration Document or Steps
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Jash Upadhyay
1
Reputation point
HI Team ,
I am attempting integration of MFA with On-Prem Exchange server for rich clients and mobile clients as well. ADFS is integrated for OWA and working well. Only issue is for rich client how should I get the AUTH request on ADFS from exchange server? Any steps or document will help
Microsoft Security | Active Directory Federation Services
Exchange | Exchange Server | Management
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Kael Yao 37,746 Reputation points Moderator2022-02-04T08:37:40.27+00:00 I am writing here to confirm with you how thing going now?
Please let us know if you would like further assistance. -
Jash Upadhyay 1 Reputation point
2022-02-07T11:49:09.353+00:00 @Kael Yao
I am still stuck with multi factor authentication for Outlook rich client integration.
I saw one command for Active-Sync ADFS authentication - I can try this but I will still need a RPT created on AD FS. If you can help me it would be great help.Any solution for rich client will help me a lot.
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2 answers
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Andy David - MVP 157.8K Reputation points MVP Volunteer Moderator2022-01-21T13:10:16.397+00:00 -
Jash Upadhyay 1 Reputation point
2022-01-27T05:22:13.647+00:00 @Andy David - MVP Thank you for your reply. Do we have any methods we can get MFA on rich clients for On-Prem exchange?
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Jash Upadhyay 1 Reputation point
2022-02-08T09:05:50.373+00:00 @Andy David - MVP Can it work with IIS authentication agent for rich client if not ADFS?
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Andy David - MVP 157.8K Reputation points MVP Volunteer Moderator
2022-02-08T12:20:42.617+00:00 Sorry, couldnt tell you and I would only use the supported methods I have mentioned earlier.
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Andy David - MVP 157.8K Reputation points MVP Volunteer Moderator
2022-01-27T12:31:11.7+00:00 Yes, you can use the Hybrid Modern Auth that is available via Azure/365
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Jash Upadhyay 1 Reputation point
2022-01-27T13:47:49.98+00:00 @Andy David - MVP I have customers only on On-Prem without cloud as per government regulations. So for such customers to have MFA on rich client is a problem. So without cloud is there a way?
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Andy David - MVP 157.8K Reputation points MVP Volunteer Moderator
2022-01-27T14:29:20.537+00:00 not sure honestly. That would require a 3rd party solution I would think. (Symantec etc...)
but Outlook windows clients maybe the sticking point
https://learn.microsoft.com/en-us/answers/questions/554293/2fa-for-on-premise-exchange-2019.html
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Aamir Yaseen 1 Reputation point2022-03-08T11:20:24.337+00:00 You'll have to opt for a different client entirely if you are planning to implement MFA without Hybrid Modern Authentication as that relies on Azure MFA service on cloud
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