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Thunderbird fails to log into outlook.com now that 2FA is required

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  • 0 har dette problemet
  • Siste svar av bobd888

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I have not been able to get Thunderbird to work with my outlook.com email address since MS requires 2FA, for me about 3 days ago. My server configuration is :

W10/32 bit fully patched Thunderbird 128.2.3esr (32 bit) POP Mail Server outlook.office.365.com, port 995 my MS "user name" which is my email xxxx.outlook.com SSl/TLS OAuth2

       In SMTP Server 

outlook.office365.com 465 SSL/TLS OAuth2 xxxx@outlook.com

The error message I get with this config says "Thunderbird could not connect to server outlook.office365.com; the connection was refused".

I DO NOT have an office365 account.

Logging to www.outlook.com with my UN (=outlook.com email address) and password WORKD. Although the lack of a way to turn off the MS spam filtering makes it useless. I have put some MS thing on my phone and I have to do some 2FA thing when bringing up www.outlook.com.


Help please.

I have not been able to get Thunderbird to work with my outlook.com email address since MS requires 2FA, for me about 3 days ago. My server configuration is : W10/32 bit fully patched Thunderbird 128.2.3esr (32 bit) POP Mail Server outlook.office.365.com, port 995 my MS "user name" which is my email xxxx.outlook.com SSl/TLS OAuth2 In SMTP Server outlook.office365.com 465 SSL/TLS OAuth2 xxxx@outlook.com The error message I get with this config says "Thunderbird could not connect to server outlook.office365.com; the connection was refused". I DO NOT have an office365 account. Logging to www.outlook.com with my UN (=outlook.com email address) and password WORKD. Although the lack of a way to turn off the MS spam filtering makes it useless. I have put some MS thing on my phone and I have to do some 2FA thing when bringing up www.outlook.com. Help please.
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All Replies (4)

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the outgoing server should be smtp.office365.com, STARTTLS, port 587 Oauth2

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Changed the smtp server, port etc as David said.I still get the same connection refused message when I try to get new messages. I edited the smtp config, exited TB, closed my "mail" window with www.outlook.com, waited a while (short while) and restarted TB. No Joy.

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October 4

Changed the smtp server, port etc as David said.I still get the same connection refused message when I try to get new messages. I edited the smtp config, exited TB, closed my "mail" window with www.outlook.com, waited a while (short while) and restarted TB. No Joy.

Friday update: Actually some joy. I discovered that sending mail from thunder bird, with the settings David suggested, does work. In fact, after Outlook does a 2FA to my phone I can send mail for some length of time, perhaps until I reboot TB (?), without repeating the 2FA dance. BTW, the 2FA I'm seeing is where outlook shows a 2 digit numbers and my phone shows three 2-digit numbers. Tapping the one corresponding to the one outlook shows finishes the login.

Still no luck receiving mail from outlook. I get the connection refused every time I try to get new mail. The outlook.com web site, such as it is, does let me see my new mail except for what it puts in junk and, I think, there are mails that outlook/MS is deleting even before the junkmail filter.

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outlook.office.365.com for incoming server should be outlook.office365.com (no dot between office and 365).

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