Blocking Constant Contact emails
On 11/17, Cox blocked the delivery of emails from my Constant Contact account sent to @cox.net addresses. Successful delivery to the same addresses happened a just a few days before.
The Constant C...
Forum Discussion
Cox Mail system prevents mail systems that do not adhere to proper DNS requirements, from sending mail to their subscribers. many SPAMMERS will simply try to setup a mail server with minimal DNS and try to send out thousands of spam emails, and Cox's system of requiring proper DNS prevents it.
