Where did you install Firefox from? Help Mozilla uncover 3rd party websites that offer problematic Firefox installation by taking part in our campaign. There will be swag, and you'll be featured in our blog if you manage to report at least 10 valid reports!

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

outgoing with comcast

  • 2 svar
  • 1 har dette problemet
  • 2 views
  • Siste svar av jfescen

more options

I have used Thunderbird for years with no problem. For the last several months, I receive the following message on outbound messages only. Additionally, this issue only occurs on my desktop computer, thunderbird works fine with my laptop: “An error occurred while sending mail: Outgoing server (SMTP) error. The server responded: resomta-a1p-076783.sys.comcast.net resomta-a1p-076783.sys.comcast.net Excessive failed authentication, ESMTP server temporarily not available.”

I have used Thunderbird for years with no problem. For the last several months, I receive the following message on outbound messages only. Additionally, this issue only occurs on my desktop computer, thunderbird works fine with my laptop: “An error occurred while sending mail: Outgoing server (SMTP) error. The server responded: resomta-a1p-076783.sys.comcast.net resomta-a1p-076783.sys.comcast.net Excessive failed authentication, ESMTP server temporarily not available.”

Valgt løsning

Other users have reported similar issues with Comcast:

https://support.mozilla.org/en-US/questions/1365914

Les dette svaret i sammenhengen 👍 0

All Replies (2)

more options

Valgt løsning

Other users have reported similar issues with Comcast:

https://support.mozilla.org/en-US/questions/1365914

more options

my issue was with Norton VPN. After I disabled, it works fine