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I can't send messages anymore from thunderbird with an outlook adress

  • 4 replies
  • 0 have this problem
  • Last reply by mgabbay

mgabbay
mgabbay
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Hello, Since the Oauth2 security from Microsoft, I can't send messages anymore from thunderbird with an outlook adress (but I can receive messages after following instructions) I followed rigourously the instructions from Microsoft and Thunderbird on this two pages : https://support.microsoft.com/fr-fr/office/param%C3%A8tres-pop-imap-et-smtp-pour-outlook-com-d088b986-291d-42b8-9564-9c414e2aa040 https://support.mozilla.org/fr/kb/microsoft-oauth-authentification-thunderbird (These are pages in french because I'm French hence my poor english (sorry for that)) And tried every solution (for instance, the smtp server advised is not the same for Microsoft and Thunderbird, of course I tried both many times)

Thanks for your answers Michel

Hello, Since the Oauth2 security from Microsoft, I can't send messages anymore from thunderbird with an outlook adress (but I can receive messages after following instructions) I followed rigourously the instructions from Microsoft and Thunderbird on this two pages : https://support.microsoft.com/fr-fr/office/param%C3%A8tres-pop-imap-et-smtp-pour-outlook-com-d088b986-291d-42b8-9564-9c414e2aa040 https://support.mozilla.org/fr/kb/microsoft-oauth-authentification-thunderbird (These are pages in french because I'm French hence my poor english (sorry for that)) And tried every solution (for instance, the smtp server advised is not the same for Microsoft and Thunderbird, of course I tried both many times) Thanks for your answers Michel

All Replies (4)

david
david
  • Top 10 Contributor
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First, make sure that your server setup matches this: - incoming: outlook.office365.com, port 993, SSL/TLS, Oauth2 (assuming IMAP) - outgoing: smtp.office365.com, port 587, STARTTLS, Oauth2

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mgabbay
mgabbay Question owner
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david a écrit
First, make sure that your server setup matches this: - incoming: outlook.office365.com, port 993, SSL/TLS, Oauth2 (assuming IMAP) - outgoing: smtp.office365.com, port 587, STARTTLS, Oauth2

I'm in POP3, for incoming messages the default port is 995 (anyway, incoming messages work) The other specs are exactly what you wrote.

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david
david
  • Top 10 Contributor
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Are you using your full email address, including the text to the right of the @?

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mgabbay
mgabbay Question owner
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yes, I do

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