Join the AMA (Ask Me Anything) with the Firefox leadership team to celebrate Firefox 20th anniversary and discuss Firefox’s future on Mozilla Connect. Mark your calendar on Thursday, November 14, 18:00 - 20:00 UTC!

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.

تلاش سپورٹ

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.

مزید سیکھیں

Sending of the message failed.

  • 6 جواب دیں
  • 2 میں یہ مسئلہ ہے
  • 44 دیکھیں
  • آخری جواب بذریعہ Sillycat41

more options

In the past week I have received this error message several times when trying to send an email with T-bird 91.7.0. Most emails are sent but every once in a while they won't go. I can't figure why. Any ideas? Something to do with the content?

Sending of the message failed. The message could not be sent using Outgoing server (SMTP) mail.tds.net for an unknown reason. Please verify that your Outgoing server (SMTP) settings are correct and try again.

In the past week I have received this error message several times when trying to send an email with T-bird 91.7.0. Most emails are sent but every once in a while they won't go. I can't figure why. Any ideas? Something to do with the content? '''Sending of the message failed. The message could not be sent using Outgoing server (SMTP) mail.tds.net for an unknown reason. Please verify that your Outgoing server (SMTP) settings are correct and try again.'''

تمام جوابات (6)

more options

Hello there sillycat. We have read your message. We try to help you.

Oké your message could not be send for going out to the outgoing server with reasons.

Do you have a error number?


https://support.mozilla.org/en-US/kb/cannot-send-messages


Greetings Firefox volunteer.

Display name. день сумо کی جانب سے میں ترمیمکی گئ

more options

There was no error number, just this message:

Sending of the message failed.

The message could not be sent using Outgoing server (SMTP) mail.tds.net for an unknown reason. Please verify that your Outgoing server (SMTP) settings are correct and try again.

more options

Hello there again silly cat.

Can you send me your Smtp configuration?


It could be that it is your Smtp settings. A picture is oke.


Greetings Firefox volunteer.

Display name. день сумо کی جانب سے میں ترمیمکی گئ

more options

Sorry... I should have given more details. My ISP's SMTP settings are correct. I can send several emails with no problem and then this message pops up on the next email. Then I can send several email again with no problem. It's very erratic. I'm wondering if it has something to do with the content of the email... for example when I'm forwarding a certain web site.

more options

I suggest you log your sending of mails so there is something to go on when it fails.

See https://thunderbirdtweaks.blogspot.com/2021/10/logging-mail-sending-in-thunderbird.html

more options

Thanks Matt... I'll give this a try.