COX SMTP servers now longer works for some internet connections. It is throwing a CXDNS which means that it is blocking all addresses that cannot be reverse DNS lookup-ed, but some addresses cannot be DNS lookup-ed. We have Frontier internet and address they give us does not have a DNS entry. If I switch my Google Fi Android phone to the cellular network, the SMTP works (because the name is DNS resolveable).
Thanks for the tip, SpongeBob128, really appreciate it. From what you just told me this is totally and absolutely on Cox. We as users have absolutely no control over whether a DNS server has reverse lookup or not. For crying out loud, we’re the customers, not the friggen IT Tech department. I hope KevinM2 reads your reply and can look into what you described. That’s the best and most logical thing I’ve read concerning Cox’s email issues yet.
Thank you so much for your reply.
Definitely a Cox problem. When you addressed email to ATT and Google, you did not get rejects. The email has yet to deliver, but you didn't get rejects.
When you addressed to a valid address on the Cox domain, you did get rejects.
These processes involve different server agents so you're getting differing results. The problem is on the server...not with your settings.
You know it and I know it, and perhaps if Cox reads your post, then they’ll know it. Now what the heck are they going to do and how much longer will it take? What a mess.
Thanks for your reply.
It is a mess. The servers processing "in-house" email (stays within the Cox domain) are broken. Outbound Internet email is broken. At least you get email. Blah!
