Windows 10 will reach EOS (end of support) on October 14, 2025. For more information, see this article.

Avatar for Username

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

This thread was archived. Please ask a new question if you need help.

Can't send e-mail after update

  • 1 reply
  • 1 has this problem
  • 1 view
  • Last reply by christ1

olofthomsson
olofthomsson
more options

Can't sen mail after the latest update to 78.4.0 (32-bits, Swedish version). My internet server answers "The protocoll is not supported" What has happened??? I have not changed anything in the settings.

Can't sen mail after the latest update to 78.4.0 (32-bits, Swedish version). My internet server answers "The protocoll is not supported" What has happened??? I have not changed anything in the settings.

All Replies (1)

christ1
christ1
  • Top 25 Contributor
more options

Does your email provider use an outdated TLS version? Then you should contact them about this. As their customer it would also leave you vulnerable to some extend. See https://support.mozilla.org/en-US/kb/thunderbird-78-faq#w_after-upgrading-to-thunderbird-78-i-cannot-get-or-send-email-messages