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SMTP/Sending Emails just stopped working

Hi there - been using Thunderbird for donkeys (since it was Eudora!). A few weeks back I started to get messages from Microsoft that I needed to change security settings… (read more)

Hi there - been using Thunderbird for donkeys (since it was Eudora!). A few weeks back I started to get messages from Microsoft that I needed to change security settings as they were no longer supported on 3rd party email handlers like Thunderbird. So I re-created the three accounts I had there and it seemed to be OK, though SMTP did not have the OAUTH2 option available ... and when I tried to use the new SMTPs they wouldn't work. So I reverted to the old settings there and it worked again.

But this morning, with the big update to Thunderbird Nebula, I can no longer send emails from the MS accounts. My Gmail one is still OK ... but whatever I try, I cannot get the MS ones to send emails - I get a failure connecting.

Login to server smtp-mail.outlook.com with username xxxxx@hotmail.com failed.

I checked on MS and the details shown there:

SMTP server name smtp-mail.outlook.com SMTP port 587 SMTP encryption STARTTLS Authentication Method OAuth2/Modern Auth

Are what I have (I did have a different SMTP Server name came up - smtp.office365.com - but that doesn't work either)

So ... where is the issue? Is this a bug in the new Thunderbird setup? Something else? I don't know where to go ...

David

Asked by david854 4 months ago

Answered by Toad-Hall 4 months ago

  • 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 1 year ago

Last reply by Toad-Hall 1 year ago

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  • Archived

SMTP server is set up properly, but isn't listed in Saved Logins

I've changed my ISP's mail server password, and it's correct in Saved Logins, but I can't send mail because I need to change the SMTP password. My SMTP account is listed … (read more)

I've changed my ISP's mail server password, and it's correct in Saved Logins, but I can't send mail because I need to change the SMTP password. My SMTP account is listed correctly, but it doesn't appear in the Saved Logins list. So I can't update its password. How can I get my SMTP account added to the Saved Logins list?

Thanks in advance for your work on this.

Asked by wardwebber@centurylink.net 1 year ago

Last reply by david 1 year ago