Join the Mozilla’s Test Days event from Dec 2–8 to test the new Firefox address bar on Firefox Beta 134 and get a chance to win Mozilla swag vouchers! 🎁

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

Can no longer send messages

  • 1 reply
  • 1 has this problem
  • 44 views
  • Last reply by david

more options

Thunderbird works great except that I can no longer send messages. "Sending of the message failed. An error occurred while sending mail: Outgoing server (SMTP) error. The server responded: resomta-a1p-077051.sys.comcast.net resomta-a1p-077051.sys.comcast.net Excessive failed authentication, ESMTP server temporarily not available." How do I correct the problem?

Thunderbird works great except that I can no longer send messages. "Sending of the message failed. An error occurred while sending mail: Outgoing server (SMTP) error. The server responded: resomta-a1p-077051.sys.comcast.net resomta-a1p-077051.sys.comcast.net Excessive failed authentication, ESMTP server temporarily not available." How do I correct the problem?

All Replies (1)

more options

Since the error message says the server is temporarily unavailable, I suggest you contact comcast.