Domain user cannot add pop3 account to outlook (local user can do)

Question

Hello,

I am lost with Outlook 2019 (or 2021 or 365 or 2016) and Windows 10 (up to date).

I am trying to get working pop3 account but it is a fail like in this post:

https://learn.microsoft.com/en-us/answers/questions/236915/error-connecting-to-pop3-server-from-a-domain-join.html

Help :)

Regards,
Martin

Answer 1

Hi @Martin ,

Glad to hear this issue has been resolved!
Thanks for the sharing.

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However, due to a recent update in forum policy, the question author now is not able to accept their own answers.

So I have written a brief summary of the solution this issue. Please feel free to accept it as the answer, which would benefit others who also has similar issues in forum.

Solution:

1. Select Start, select Run, type regedit in the Open box, and then select OK.
2. Locate and then select the registry subkey: Computer\HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Cryptography\Protect\Providers\df9d8cd0-1501-11d1-8c7a-00c04fc297eb.
3. Check if ProtectionPolicy on the right side, if it doesn’t exists, please manually create the DWORD 32bit value and name it as ProtectionPolicy.
4. Double click on ProtectionPolicy and change the registry entry value to 1.

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Answer 2

Hi @ChristyZhang-MSFT

I can confirm that Windows Mail does not work too.

It seems to be related with :

https://itmhelpdesk.rmagroup.net/knowledgebase.php?article=306

After the modification of the registry key everything is working.

Regards,
Martin