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The advanced configuration will allow me to specify an SMTP user name but there is no way to configure the IMAP user name being different from the email-address.
Using New Outlook on Windows for professional communication and productivity
Locked Question. This question was migrated from the Microsoft Support Community. You can vote on whether it's helpful, but you can't add comments or replies or follow the question.
If Microsoft is following this thread, we would appreciate a comment on whether this issue is expected to be addressed, or what solution you recommend. Are there some versions of Outlook that include this functionality?
Thank you, Andrew
Are there some versions of Outlook that include this functionality?
I can, at least, answer this part for you: Outlook 365 aka Outlook Classic - includes it.
This is currently how I'm accessing my IMAP account on my Windows 10 PC. Since my Windows 10 installation will end of life in October, this solution works for me for now.
However - according to Microsoft - they want most people to transition from Outlook Classic to Outlook New by April 2026:
Microsoft's plan is for the entire transition over to the new Outlook app to be completed by April 2026, but “existing installations of classic Outlook through perpetual and subscription licensing will continue to be supported until at least 2029,” said one Microsoft representative who reached out to us.
from https://www.pcworld.com/article/2551776/classic-outlook-gets-an-official-death-date-microsoft.html
Just adding my shared frustration on this subject. This going to stop me from using Outlook as my IMAP email client completely, quite soon.
Plenty of other options exist of course (Thunderbird is my personal choice), but, it's the integration with family calendars, To-Do and other MS services which makes this such a pain. And for something so, so simple that it should have been in the very first release.
We really shouldn't need to be making a feature request for this. It's a very disappointing experience.
You are right! I also can't understand why the new Outlook doesn't support IMAP - unbelievable!
But just using classic Outlook (Outlook 365) solves your problem.
I was able to do this via the control panel "Mail" option. I was not able to configure this via just adding an account inside of Outlook.