Showing questions tagged: Show all questions
  • Archived

Unable to send emails after upgrading to Thunderbird 115 - empty pop-up window "Enter credentials for (xxx) on smtp.office365.com" - could not be sent because the connection to Outgoing server (SMTP) smtp.office365.com timed out.

All of a sudden, since yesterday, I cannot send any emails via TB since I upgraded to the 115-version. I've never experienced this before using TB. Sending emails elsew… (read more)

All of a sudden, since yesterday, I cannot send any emails via TB since I upgraded to the 115-version. I've never experienced this before using TB.

Sending emails elsewhere from - by directly logging in to hotmail or from my phone - is no problem whatsoever.

But on TB115, when attempting to send a mail, an empty pop-up window appears with the headline "Enter credentials for (my emailaddress) on smtp.office365.com", before closing again. After a short while attempting to deliver the message, an error box reads: "Sending of the message failed. The message could not be sent because the connection to Outgoing server (SMTP) smtp.office365.com timed out. Try again."

SMTP settings: Outlook.com (Microsoft) smtp.office365.com Port 587 STARTTLS OAuth2

Any solutions?

Asked by runikorsgaard 8 months ago

Last reply by Toad-Hall 8 months ago

  • Archived

Thunderbird does not accept my password

Windows did its updates this morning, since which Thunderbird does not accept my password. The incoming mail is outlook.office365.com . I can work on web browser, but I a… (read more)

Windows did its updates this morning, since which Thunderbird does not accept my password. The incoming mail is outlook.office365.com . I can work on web browser, but I actually want to work on Thunderbird.

Asked by boshoff7 1 year ago

Last reply by Toad-Hall 1 year ago