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All of my outgoing emails have started going to everyones SPAM

I-Thunderbird Junk email and spam
Matt replied
bwood.fl
bwood.fl

I have used Thunderbird for years and years and never had a problem. The last 2 weeks all of my outgoing emails have been going to everyone's SPAM folders. I have an AT&T email account and I use the AT&T Pop server settings, for the Outgoing Server I have the Comcast/Xfinity settings. I receive emails with no problems, it is my outgoing emails only. I don't know if it is a Comcast problem, an AT&T problem or Thunderbird problem. I have been on the phone with Xfinity for 2.5 hours and still having problems. Any suggestions.

I have used Thunderbird for years and years and never had a problem. The last 2 weeks all of my outgoing emails have been going to everyone's SPAM folders. I have an AT&T email account and I use the AT&T Pop server settings, for the Outgoing Server I have the Comcast/Xfinity settings. I receive emails with no problems, it is my outgoing emails only. I don't know if it is a Comcast problem, an AT&T problem or Thunderbird problem. I have been on the phone with Xfinity for 2.5 hours and still having problems. Any suggestions.

All Replies (1)

Matt
Matt
  • Top 25 Contributor

I would think a user configuration problem, based on the limited information you have written.

AAT and Comcast/Xfinify are not the same thing, so if you are sending mail with an ATT address I actually would have expected the outgoing server (Comcest/Xfinity) to refuse to accept them. Normally that would be the case. Yahoo is the upstream provider for all three mail domains however so their servers have to accept ATT and Comcast mail addresses and they are forwarding it. That does not obligate a server receiving such email to accept it or deliver it. Apparently in this instance they are treating the mail as spam on receipt.

For your ATT account you need an ATT outgoing server. ATT do provider details of the settings here https://www.att.com/support/article/email-support/KM1010523/

The approved mail exchanger server for ATT email domain is mx-att.mail.am0.yahoodns.net for comcast is is reported as 5 mx1.mxge.comcast.net 96.103.145.162 (no glue) 50 mx2c1.comcast.net 96.102.18.146 (no glue) 50 mx1h1.comcast.net 96.102.157.181 (no glue) 50 mx2h1.comcast.net 96.102.157.180 (no glue) 50 mx1a1.comcast.net 96.103.145.163 (no glue) 5 mx2.mxge.comcast.net 96.103.145.163 (no glue) 50 mx2a1.comcast.net 96.103.145.162 (no glue) 50 mx1c1.comcast.net 96.102.18.147 (no glue)

When mail purporting to be from an ATT address arrives at a server one of the most common validity checks the receiving server does is to check the mail came from the reported mail exchanger (reverse DNS). Clearly ATT and Comcast do not use the same mail exchanger so the received mail looks like SPAM and is treated as such.

So add an SMTP for your ATT account and use it for your ATT mail. It is that simple. Note if you are using the ESR or release version of Thunderbird the authentication method should be oAuth for ATT. For other versions you will need to use the mailkey provided by ATT. and an authentication method of normal password. See https://www.att.com/support/article/email-support/KM1240308/

Buza umbuzo

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