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

Thunderbird stopped sending mail

  • 1 vastus
  • 0 on selline probleem
  • 3 views
  • Viimati vastas Wayne Mery

more options

Using 115.5.2 and macos 13.6.3. Suddenly on or before 12/10/23 Thunderbird stopped sending email. Receiving continues to work. No changes to software recorded (either TB or OS. Have reset all parameters according to ISP (charter.net). Installed Mailspring and it send mail without issue using the same parameters. Have reinstalled TB. I have not discarded all TB files as I have huge archive of emails I cannot loose. Is/Are there specific setting files that I can reset without loosing data?

Using 115.5.2 and macos 13.6.3. Suddenly on or before 12/10/23 Thunderbird stopped sending email. Receiving continues to work. No changes to software recorded (either TB or OS. Have reset all parameters according to ISP (charter.net). Installed Mailspring and it send mail without issue using the same parameters. Have reinstalled TB. I have not discarded all TB files as I have huge archive of emails I cannot loose. Is/Are there specific setting files that I can reset without loosing data?
Attached screenshots

All Replies (1)

more options

Such issues tend to be caused by antivirus or the mail provider. Have you seen https://support.mozilla.org/en-US/kb/cannot-send-messages

And have you resolved your issue?