This site will have limited functionality while we undergo maintenance to improve your experience. If an article doesn't solve your issue and you want to ask a question, we have our support community waiting to help you at @FirefoxSupport on Twitter and/r/firefox on Reddit.

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

Hierdie gesprek is in die argief. Vra asseblief 'n nuwe vraag as jy hulp nodig het.

Intermittant issues sending emails from Comcast on Thunderbird and also from my Samsung Galaxy S20+ email program

  • 3 antwoorde
  • 1 het hierdie probleem
  • 20 views
  • Laaste antwoord deur FredricJLowe

more options

Recently, have been experiencing issues sending emails from Thunderbird using Comcast. Also, concurrently have the same issues at times sending them from my Samsung Galaxy S20+ Android phone using the installed email program.

I contacted Comcast and they had me try sending an email directly from their website which was successful. Then miraculously the issues disappeared and was able to send the emails from Thunderbird as well as my phone.

Then the issue started again about 5 days later.

Anyone have anything like this happen to them and if so, what did you do to fix it?

Recently, have been experiencing issues sending emails from Thunderbird using Comcast. Also, concurrently have the same issues at times sending them from my Samsung Galaxy S20+ Android phone using the installed email program. I contacted Comcast and they had me try sending an email directly from their website which was successful. Then miraculously the issues disappeared and was able to send the emails from Thunderbird as well as my phone. Then the issue started again about 5 days later. Anyone have anything like this happen to them and if so, what did you do to fix it?
Aangehegde skermkiekies

Gewysig op deur FredricJLowe

All Replies (3)

more options

out of the blue the email that failed sending from my ATT Ssmaung Galaxy S20+ phone was sent and no longer getting an error message.

But sending a test from one of my Comcast email addresses to myself did not send.

I'll keep trying to isolate this and will post.

more options

The issue is at Comcast. I know nothing of your setup or anything else, but if two different mail programs on two different operating systems have an intermittent problem, then the problem is with the server/network they are connecting to. It is almost 10 years since I heard Comcast had problems with resolving IPV6 addresses. Perhaps they have them back.

more options

Hi Matt,

I agree with you. I just sent a test email from one of my Comcast addresses to the same one and it was sent.

I wonder what is causing this issue intermittantly? I have been using Thunderbird for almost 20 years and never experienced this issue until about 3 weeks ago. It will disappear and then suddenly reservice.

Like the email that was stuck in my Outbox on my ATT Samsung Galaxy S20+ phone. When I looked days later, it was not there and it appeared in the Sent folder!