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

SOLVED !!

TWC (my Provider) Changed my SMTP Security to "STARTTLS" without telling me!! I changed my Outgoing SMTP to STARTTLS and it now works fine!

When your problem has been fixed, can you mark the topic as 'Solved' please? Thank you.

I thought I did!? "

SOLVED !!

TWC (my Provider) Changed my SMTP Security to "STARTTLS" without telling me!! I changed my Outgoing SMTP to STARTTLS and it now works fine! "

   ichido Avatar for Username

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   Last reply by christ1

6 hours ago ichido ichido 4/22/22, 2:31 PM

   Quote

Cannot send emails using T-Bird in Linux Mint 20.2 and 20.3. Using 3 different Laptops! I CAN Receive emails!! Attached screenshots Chosen solution

When your problem has been fixed, can you mark the topic as 'Solved' please? Thank you. Read this answer in context

HOW do I mark it as Solved?