Forum Discussion
Please review Cox support ticket CUI7952488 opened 4/25.
The error message when attempting to send mail from my laptop reads "An error occurred while sending mail: The mail server sent an incorrect greeting: cxr-obgw-5004a.stratus.cloudmark.com cmsmtp 66.212.50.38 blocked. Refer to Error Codes section at www.cox.com/.../email-error-codes.html for more information. AUP#CXDNS."
I have checked multiple RBL resources and this IP address is *NOT* listed on any of them.
When sending from my iPhone the SMTP connection simply times out.
- ChrisL5 years agoFormer Moderator@Sw23185
The error message you're receiving is not an RBL related issue but rather indicates that the network you're using does not have rDNS properly configured which we require for SMTP connections for security purposes. You can have your network provider visit http://postmaster.cox.net for more information on correcting this or using our webmail would be an effective workaround.
-Chris - sw231855 years agoNew Contributor III
Chris,
"Using our webmail would be an effective workaround"???? Thanks for a good laugh to start the day. I manage multiple e-mail accounts (7) from multiple ISPs within a single install of Thunderbird so the effective loss of all of my shared contacts and archives along with the ability to readily switch among sending accounts makes any use of your exceedingly archaic web mail a non-starter.If this is the same Tier 2 'Chris' that I spoke with via phone back on May 13 then why did you simply tell me to change port back to the originial 465 if there was an rDNS issue? Granted that fixed the issue while I was on my home network, but it did nothing for my access from other locations. You had all of the case notes in front of you ...
As to the rDNS suggestion, there's nothing of any substance regarding reverse DNS lookups (and Cox's associated requirements) on the page that you have linked. And you fail to explain why this all changed on 4/25 with Cox's "security upgrades" and why none of my other e-mail accounts from this same IP address have no issues with my SMTP mail traffic.
A new support case was opened on 5/24 and I am still awaiting callback.
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