Domain Names/Static IP
Managing, controlling, and support for Custom Domain Names
Male IT Specialist Holds Laptop and Discusses Work with Female Server Technician. They're Standing in Data Center, Rack Server Cabinet is Open.
Highlighted
New Member

Intermitent Status: 5.1.1 (permanent failure) for some Comcast.net senders to our domain

I am having this strange issue with some comcast.net senders emailing my servers recepeints and on their end they are getting  Status: 5.1.1 (permanent failure). It only happens with Comcast.net senders. 

 

The comcast sender emails someuser@mydomain.com and gets a bounce back email with this:

Reporting-MTA: dns; nospam.nonstopdata.net
Final-Recipient: <someuser@mydomain.com>
Action: failed
Status: 5.1.1 (permanent failure)
 
Some emails from comcast go through even to the same recepients that it fails at times.
 
Any thoughts, suggestions, advice . Thanks. 
0 Kudos
Reply
1 REPLY 1
Official Employee

Re: Intermitent Status: 5.1.1 (permanent failure) for some Comcast.net senders to our domain

Thanks for reaching out to us on our Comcast Business Forums, Integnia_Admin.

I'm sorry that some of the Comcast users are having issues getting through. Have you run a blacklist check on your domain? I usually use MXToolbox to check. Click MXToolbox to visit the site and check for domain issues. If you still need assistance from me, send me a private message with your full name, address and the email your senders are having trouble getting through to. 

0 Kudos
Reply