550-"JunkMail rejected

@user_47a8ca​ 

I have the same problem. So, what is Comcast going to do? The email is certainly not "junk." Sometimes, the same message gets through depending on the receipient's address.

Reporting-MTA: dns; resdmta-a1p-077741.sys.comcast.net [96.103.146.34]
Received-From-MTA: dns; resomta-a1p-077052.sys.comcast.net [96.103.145.234]
Arrival-Date: Tue, 05 Apr 2022 00:46:59 +0000

Final-recipient: rfc822; [Edited: "Personal Information"]
Diagnostic-Code: smtp; 550-"JunkMail rejected - resdmta-a1p-077741.sys.comcast.net

Last-attempt-Date: Tue, 05 Apr 2022 00:47:10 +0000

@robert.n045​ 

I think I've solved the problem by turning off Comcast's spam filtering.

I had recently (around March 13 2022) turned on Comcast spam filtering in the Comcast web interface at https://connect.xfinity.com/appsuite/#!!&app=io.ox/mail&folder=default0/INBOX.

My rejected outgoing emails were to HostGator email addresses. I got on the phone with both HostGator (who said  it was a Comcast problem) and Comcast (which suffers from recto-cranial inversion) and looked on this forum as per messages above.

But then I mysteriously got unsubscribed from a longtime email list I belonged to; the list administrator of that list said I had rejected an email from the list as spam, which automatically unsubscribed me.

So I turned off Comcast spam filtering, and re-subscribed to that email list, and that problem went way.

But then I also noticed that my bouncing by Comcast servers of outgoing emails to Hostgator emails has gone away.
     

Now of course, an outgoing email should in principle never be rejected by in incoming spam filter. But it's Comcast, Jake, Comcast.

To turn off Comcast's spam filtering, I went to the webmail at
https://connect.xfinity.com/appsuite/#!!&app=io.ox/mail&folder=default0/INBOX
thence to the gear wheel at top right,
thence to Email Settings,
thence to Mail/Advanced Settings,
thence to Spam Filtering/Override Security Filters - Allow spam and potentially harmful messages in your Inbox.

• Now, am I 100% certain of my sequence of events? No.
• Am I 100% certain the problem is gone? Give it time.
• If you try disabling Comcast spam filtering, make sure you have other good spam filtering tools. I use Thunderbird on the desktop, with its adaptive junk filtering plus manually set filters.

Get back to this forum with your comments and experiences

@user_47a8ca​ 
Update: I have a Comcast-email-using friend who is still getting the same type of junkmail rejection when emailing to the same HostGator email addresses I am successfully mailing to, even though their Comcast spam filtering is turned off. Aargh!

@user_47a8ca​ 

Further update: Now I'm getting bounces again. So turning off the Comcast spam filter does not work.

The bounces occur both when I send from Thunderbird and when I send from the webmail interface.

I'm bummed.

I am having the same problem.  Any help is appreciated.

Thanks,

Bob

@XfinityCSAEmail​ 

You ask"When you're receiving the bounce/reject message what is the from address of that email?"
The from address is my Comcast address, of the form xxxxxxxxx@comcast.net

You say that "Every email sent has been delivered to its recipient server. Its possible the recipient server is blocking the emails . . ."

And yet the bounce messages I get or of the form

Diagnostic-Code: smtp; 550-"JunkMail rejected - resqmta-a1p-077720.sys.comcast.net

There's nothing to indicate that the bounce came back from a receiving server, only from a Comcast server.

All of the bounces I getting are addressed to one Hostgator user's account, with multiple email addresses on that account.

I've talked on the phone to Hostgator support, and they say the problem is not at their end, that it must be a Comcast problem.

My question has not been answered yet, and there is no Accepted Answer.

Got any clues for me?

@XfinityGabrielS​ Thank you for taking the time to reply. I have taken up the question with HostGator, and I hope that the solution is within sight. We use an adodyne address for members of the association board and redirect them through HostData to the correct person. When the board changes, we change the redirection addreess in HostGator and do not have to change the address books of the entire boafrd. Great idea, but it seems to be failing now.  It worked for several years but now it looks like HostGatoir has made some changes which are now in review.

Regards,

Bob [Edited: "Personal Information"]

Please let us know what their resolution is for this concern. If they are unable to resolve we would love to help as well. 

My customer is getting the following email failures when trying to email TO me.    I am a small business and have a small website that I run email through.

Not sure why your SPAM filters are blocking outgoing emails.

Is there someone I can contact to add my domain to a whitelist?

Reporting-MTA: dns; resqmta-a1p-077725.sys.comcast.net [96.103.146.34]
Received-From-MTA: dns; resomta-a1p-077058.sys.comcast.net [96.103.145.239]
Arrival-Date: Tue, 26 Apr 2022 11:14:17 +0000

Final-recipient: rfc822; chris@trin********.com
Diagnostic-Code: smtp; 554 5.7.1 Rejected due to high probability of spam

Last-attempt-Date: Tue, 26 Apr 2022 11:14:23 +0000

Same problem with someone writing to my client; intermitten however.

The hosting provider (Bluehost) states that Comcast is not blacklisted for their domain.

Reporting-MTA: dns; resqmta-a1p-077435.sys.comcast.net [96.103.146.35]

Received-From-MTA: dns; resomta-a1p-077052.sys.comcast.net [96.103.145.234]

Arrival-Date: Fri, 06 May 2022 16:36:52 +0000

Final-recipient: rfc822; [Edited: "Personal Information"]

Diagnostic-Code: smtp; 550-"JunkMail rejected - resqmta-a1p-077435.sys.comcast.net

Last-attempt-Date: Fri, 06 May 2022 16:37:03 +0000

@XfinityGabrielS​ 
So, what do you think might be the best solution to the problem? Should we move to a different hosting system which doesn't use third-party blocklists? Which hosting services, to your knowledge, use third party blocklists? Which do not? (I'm using Hostgator for my small-business emails at present, and I'm having the rejection-of-Comcast-emails problem. I contemplate a change to GoDaddy, which is now part of Microsoft.)
Or do you know a route to implement your suggestion of getting a hosting company (Hostgator in my case) to whitelist Comcast in general while blocking specific bad actors who use Comcast email?

@user_8dd142​ Thanks! You led me to the right spot. My Spam Assassin level on HostGator was already set at 10, so I embiggened it to 12. And I whitelisted specific email addresses from Comcast.Net. I'll wait and see if an unacceptable level of spam creeps through the Spam Assassin filter, and if needed will knock the level back down. It appears that I can increment the level in hundredths of a point.

Comcast is being blocked by Hostgator's servers again. The Apache Spam Assassin from 5 to 8 was not enough, although it worked yesterday. I'm trying 10. I've whitelisted the specific comcast email as well as *@comcast.net generally and the email was still blocked as "permanent error." Diagnostic-Code: smtp; 550-"JunkMail rejected - resqmta-a1p-077438.sys.comcast.net.

I spoke with Hostgator tech support at length. They disabled the spam filter. Comcast emails were still being blocked. Here is Hostgator's conclusion:

Okay. Basically, Hostgator can only blocked your incoming email from Comcast if it's detecting a spam or phishing email. but since we already disabled the spam filter of your Hostgator. I can now send emails to the server but sometimes Comcast filter is still blocking your outgoing email from their server. I do suggest to contact Comcast if they other Spam filter on their server.

@XfinityGabrielS​ could you investigate?

To add, the Hostgator rep stated that there was no other spam filter upstream.

@user_8dd142​ 

You will need to reach out to Hostgator. We tried to contact them but were unable to make headway. 

Here is an updated log from today that you can provide to show their response when sent from Comcast to your "steel" domain. It says we are on a SpamCop list, but they provide a URL and that URL says we are not.  I suspect something is broken on their spam-fighting platform, especially since they think it is off and it's still rejecting. 

Permanent failure: 550-\"JunkMail rejected - resqmta-a1p-077723.sys.comcast.net\r\n550-[96.103.146.57]:47182 is in an RBL on rbl.websitewelcome.com, see Blocked -\r\n550 see http://www.spamcop.net/w3m?action=checkblock&ip=96.103.146.57\"\r\n" banner="220-gator3225.hostgator.com ESMTP Exim 4.95 #2 Mon, 06 Jun 2022 08:11:00 -0500 \r\n220-We do not authorize the use of this system to transport unsolicited, \r\n220 and/or bulk e-mail.\r\n"

And here is the response that is most likely from the one you posted:

Permanent failure: 550-\"JunkMail rejected - resqmta-a1p-077438.sys.comcast.net\r\n550-[96.103.146.52]:56858 is in an RBL on rbl.websitewelcome.com, see Blocked -\r\n550 see http://www.spamcop.net/w3m?action=checkblock&ip=96.103.146.52\"\r\n" banner="220-gator3225.hostgator.com ESMTP Exim 4.95 #2 Mon, 06 Jun 2022 08:11:00 -0500 \r\n220-We do not authorize the use of this system to transport unsolicited, \r\n220 and/or bulk e-mail.\r\n" 

Thanks for adding to the conversation, @user_fcd4ff. Do you have a copy of the error message that is coming through for the emails that you could share?