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

thunderbird email

  • No replies
  • 1 has this problem
more options

Unable to SEND email messages on thunderbird, This problem just started last week. I have a desk top computer, CenturyLink is my browser, Norton I have talked to and they say it is not a Norton problem as the message has no Norton logo or any other message refering to Norton. The error message reads: outgoing server (smtp) error The Server Responded: (C20) messanger blocked

Sending of the message failed. An error occurred while sending mail: Outgoing server (SMTP) error. The server responded: [C20] Message blocked..

You must log in to your account to reply to posts. Please start a new question, if you do not have an account yet.