I have this problem. I'm on 7.3 on premise.
I set new OAuth configuration cause we have a 365 online subscription for our domain.
I set new email service as you can see in OAuth0 attachment (I left empty not client secret).
Then in general mail I set a new configuration to save email attachments and connect an email address. When I click to 'Login with Microsoft' it asks me credentials. I put them and then choose input and output folders.
I made a test sending mail but nothing happened (no attachment was saved in drawer).
So I came back to configuration as you can see in OAuth file and appears 2 errors.
To do configuration I'm connect as dwadmin obviously, that is connected to my company mail.
As you can see in 2 error boxes it says that has failed to connect to my email.....
So I don't know exactly what's happening....
As you understood, my aim is to check a particular company email address (not mine) and then save attachments in a drawer......
Anyone has an idea or had similar issue?
Thanks in advance.