Search Support

Avoid support scams. We will never ask you to call or text a phone number or share personal information. Please report suspicious activity using the “Report Abuse” option.

Learn More

Locked out despite correct password

  • 1 reply
  • 1 has this problem
  • 7 views
  • Last reply by gp

more options

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?

All Replies (1)

more options

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.