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Locked out despite correct password

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john.bond
john.bond
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I find myself locked out of my Office365 account on Thunderbird, despite putting in the correct password. I also have a gmail account, and I can send and receive as normal from that account.

At present I am having to manage my Office365 emails in Outlook, which is less user-friendly than Thunderbird. Any advice on how to persuade Thunderbird that I am genuine?

I find myself locked out of my Office365 account on Thunderbird, despite putting in the correct password. I also have a gmail account, and I can send and receive as normal from that account. At present I am having to manage my Office365 emails in Outlook, which is less user-friendly than Thunderbird. Any advice on how to persuade Thunderbird that I am genuine?

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gp
gp
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I think that's a Microsoft change (I don't give a link as this darn forum don't like them, but you should be able to find the post with a search engine, it is from techcommunity.microsoft.com):

Basic Authentication Deprecation in Exchange Online – September 2022 Update By The_Exchange_Team The Exchange Team Published Sep 01 2022 08:00 AM 411K Views Skip to footer content

One month from today, we’re going to start to turn off basic auth for specific protocols in Exchange Online for customers who use them.