ERR_TOO_MANY_REDIRECTS when accessing Gmail from Edge

Question

Here is the setup:

My company was using Gsuite for a pretty long time. I was able to access Gmail both form my private mail (let's say its ******@gmail.com) and form Gsuite (let's say it's ******@domain.com).

******@gmail.com is set as well as MS account for my MS stuff

I have linked accounts on Google, so I was able to switch between them in quick and easy way via Google dropdown.

Beside Gsuite we were using MS identity provider services to some auth and accessing to Office 365. This MS account was set as well on company mail (******@domain.com).

So basically, looks like following:

Account	Google GSuit	Google Private	MS Account
******@gmail.com	no	yes - gmail & chrome profile	yes - office
******@domain.com	yes - gmial & chrome profile	no	yes - office

Now, recently my company dropped Google Gsuite support with about 3 weeks of time remaining after cutting the cord. We are switching to MS solutions :)

In those 3 weeks, I migrated to Edge. I migrated as well my browser profile (form chrome to edge) with my joined gmail accounts as well.

Account	Google GSuit	Google Private	MS Account
******@gmail.com	no	yes - gmail & chrome profile	yes - office & edge profile
******@domain.com	no	no	yes - office & edge profile

Now the fun part:

When I'm logged in Edge to my private account all is cool. I was able to reach Gmail, I removed my ******@domain.com.

When I'm logged in Edge to my business MS account (formerly used in Gmail), when visiting gmail I'm getting ERR_TOO_MANY_REDIRECTS with wall of 302 redirections ping-ponging me between https://mail.google.com/mail/u/0/?view and https://mail.google.com/mail/u/0/

Even more confusing facts:

On Chrome I'm getting on this account nicely formatted message, that there is no support for Gmail service for this account

Answer 1

Hi, Tomasz Budziński

Thanks for visiting Microsoft Community.  

I wish I could handle your problem, however, it is more suitable for publishing on Microsoft Learn, more users post these issues there, you can click on "Ask a question", there are experts who can provide more professional solutions in that place.  

Here is a link to the forum where you can raise specific scenarios and share your idea to help solve the problem.  

Microsoft Edge - Microsoft Q&A

Sincerely hope that your question will be dealt with appropriately after contact the correct department. Thank you for your understanding! 

Best regards

Tommy Jin | Microsoft Community Support Specialist