Read the forum guidelines
I am using Siteground Hosting for my business websites and email addresses. Cox has recently marked my email server's IP address as spam. At least I am getting non deliverable notices from Cox. I have tried from 2 separate email addresses and both have the same failure notices. Here is a copy of the message with personal info redacted:
Reporting-MTA: dns; se19.mailspamprotection.com
Action: failedFinal-Recipient: rfc822;email@example.comStatus: 5.0.0Remote-MTA: dns; cxr.mx.a.cloudfilter.netDiagnostic-Code: smtp; 421 cxr-ibgw-5007a.stratus.cloudmark.com cmsmtp 184.108.40.206 blocked. Refer to Error Codes section at www.cox.com/.../email-error-codes.html for more information. AUP#CXCNCT: retry timeout exceeded
The email server ip address that is being blocked is 220.127.116.11 and does not show up on any spam blacklists that I can see.
I can give you the email addresses if you need them, but do not want to post them to a public forum.
By the way here is link to some good reference on their error codes
Email Error Codes
Thanks for the info. Cox is the only ISP that is complaining. My wife does send some group emails, but never more than 15 recipients. We can send emails to many other domains without the issue. It should be simple for Cox to review the emails from our server and if they don't see anything nefarious then whitelist the server.
You mentioned a 40 recipient rule - does Cox have a page detailing this and other requirements in enough detail that I can send to Siteground support? It would be best to have a tech from each company talk directly.
With all due respect Crystal, this IS a big issue with Cox that affects other accounts in addition to mine. When 2 large companies like Cox and Siteground are having issues that can't be resolved then I believe a forum is EXACTLY where I want to turn to for answers. I was simply doing a google search for this issue and found this forum. I responded to it so that maybe I can get some answers. I have been working with Cox diligently for almost 2 months now (an hour again on chat with them yesterday) and I have gotten nowhere. I have unresolved tickets with Cox so there is no need to reach out to them again. I am desperate for a resolution so please try to be understanding of my situation. If there is a chance that someone else out there has had this same exact issue and was able to resolve it then I would welcome the information.
I have been in contact with my host, again for over a month. Nobody seems to be able to resolve this. Is there a specific doc w/ said guidelines?