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

JohnND
JohnND
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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)

user01229325
user01229325
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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.