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.

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

Hierdie gesprek is in die argief. Vra asseblief 'n nuwe vraag as jy hulp nodig het.

Installed Thunderbird: worked well at first, now gives me error message on sen-Outgoing server (SMTPSending of the message failed. WTFDTM?

  • 1 antwoord
  • 1 het hierdie probleem
  • 4 views
  • Laaste antwoord deur user01229325

more options

I installed Thunderbird having had problems with Outlook after installing Windows 10. It worked well at first, but now I get the following nerdspeak message when I try to send an email:-

"Sending of the message failed. An error occurred while sending mail: Unable to establish a secure link with Outgoing server (SMTP) smtp.ntlworld.com using STARTTLS since it doesn't advertise that feature. Switch off STARTTLS for that server or contact your service provider. "

Yeh Right??? Virgin pounced on my dilemma and send an army of techs round to sort it - I don't think!

I have two accounts/users/email addresses on my computer, both use Thunderbird one works the other doesn't despite working originally. I haven't altered any settings - have you?

I installed Thunderbird having had problems with Outlook after installing Windows 10. It worked well at first, but now I get the following nerdspeak message when I try to send an email:- "Sending of the message failed. An error occurred while sending mail: Unable to establish a secure link with Outgoing server (SMTP) smtp.ntlworld.com using STARTTLS since it doesn't advertise that feature. Switch off STARTTLS for that server or contact your service provider. " Yeh Right??? Virgin pounced on my dilemma and send an army of techs round to sort it - I don't think! I have two accounts/users/email addresses on my computer, both use Thunderbird one works the other doesn't despite working originally. I haven't altered any settings - have you?

All Replies (1)

more options

Thunderbird is email client software running on YOUR computer. I am not sure who you are asking about changing anything. Talk to your provider and confirm what server settings you are supposed to use.