AAAAGH! Microsoft365 and Thunderbird - Is there any way to get sending working?!
I am so annoyed, MS clearly sabotage this to push people back to their horrific software! I am so against that idea I lost an entire full work day today trying to do something SO simple, to install Thunderbird (for a friend) and connect it to MS365 email address.
It's IMAP, it should have taken SECONDS! It did create it, pulled in tons of email, but refuses to SEND any! I tried every single suggestion I could find online, going back years. NOTHING works! All i get every time whne sending email is : "Login to server smtp.office365.com failed. "
Does anyone have a magic cure, 6 solid hours of this and I still refuse to give up hopes of making Thunderbird the active mail client! Thanks
All Replies (5)
Maybe, if you post a screenshot of the SMTP server settings pane, someone here can make suggestions. Seeing the screenshot is import to ensure we see what thunderbird sees. thank you.
Thanks for replying. Sorry, here you go...
Top section is incoming IMAP settings, bottom section is SMTP settings. I have tried EVERY online suggestion I could find, which included changing most of these several times but this is the version currently in use, attached.
PS When I let Thunderbird handle it (just enter email and password on new account dialogue) it all seems to work just fine, 1500 emails drop into the inbox nicely, no problem receiving. Just sending fails every time. I suspect it's a bit of Microshite skullduggery to try to force people to use their software, but if anyone has any tips worth trying, I am game! Thanks
Well, those settings match mine. You might try the developer tools and check error console and post error messages and maybe someone with more tech knowledge can assist.
Thanks, do you use Microsoft365? If so that's very odd. I believe this email account in question is one of several accounts in some kind of business/family account at MS, and it's not the administrator of the account. But we went in and couldn't see any settings wrong, and we seemed to have full authority to act on the account admin area. Some things I read online say you have to turn off MFA/2FA, others say to turn it on! Neither makes any difference. One thing I did find strange is, when we set the account up using the auto configuration, it prompted for a password for the outlook/MS email account, BUT it did not ask for 2FA code, which I was expecting it to.
It is not enough to think anything about an exchange environment. If it is a business account you will need to consult with the business administrator as they have full control of who and what can log in. Thunderbird may simply not be on their approved software list so does not work. They might use a different tenant (I really don't know what one of those are, I just know administrators get to set them up and manage access using them.) Some tenants do not allow Thunderbird others do. Some businesses are strict about what software you use, other simply do not care as long as they do not have to provide it. Others a strict and expect you to pay for their approved software to do your job for some reason.
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