This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

Avatar for Username

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

This thread was archived. Please ask a new question if you need help.

Outlook (OAuth2) to Thunderbird

  • 2 replies
  • 1 has this problem
  • 5 views
  • Last reply by legend3x

legend3x
legend3x
more options

Hi!

My university has just switched to cloud email and I am trying to add the new account to Thunderbird, but there seems to be an issue with two-factor authentication.

I am using the following settings:

Incoming: 

   IMAP
   Server hostname: outlook.office365.com
   Port: 993
   SSL: SSL/TLS
   Authentication: Oauth2

Outgoing: 

   Server hostname: smtp.office365.com
   Port: 587
   SSL: STARTTLS
   Authentication: Oauth2

and finally my email account as a username.

This is where I select my inbox and Thunderbird opens a new window of Outlook webmail prompting me to log in. I use my credential but the login fails, displaying a message that the username or password are incorrect.

Going over the web, I saw that an app password could work as a solution, however I cannot see an app password method option under the Security Info of my account here: https://mysignins.microsoft.com/security-info

I am using Thunderbird 78.12.0

Any ideas? Thank you in advance!

Hi! My university has just switched to cloud email and I am trying to add the new account to Thunderbird, but there seems to be an issue with two-factor authentication. I am using the following settings: Incoming: IMAP Server hostname: outlook.office365.com Port: 993 SSL: SSL/TLS Authentication: Oauth2 Outgoing: Server hostname: smtp.office365.com Port: 587 SSL: STARTTLS Authentication: Oauth2 and finally my email account as a username. This is where I select my inbox and Thunderbird opens a new window of Outlook webmail prompting me to log in. I use my credential but the login fails, displaying a message that the username or password are incorrect. Going over the web, I saw that an app password could work as a solution, however I cannot see an app password method option under the Security Info of my account here: https://mysignins.microsoft.com/security-info I am using Thunderbird 78.12.0 Any ideas? Thank you in advance!

All Replies (2)

sfhowes
sfhowes
  • Top 10 Contributor
more options

Setting up an O365 account in TB is not straightforward. Perhaps this source will help:

https://eightwone.com/2020/07/01/configuring-exchange-account-with-imap-oauth2/

legend3x
legend3x Question owner
more options

Thanks for replying!

After going through the link, first thing I need to do is contact an admin from my university and ask him to grant me permission to use TB, as far as I understand. Because as a non-admin, I cannot do that myself.

After that, configuration should work.