Forum Discussion

Cards47's avatar
Cards47
New Contributor III
5 years ago

URGENT: Still having email issues? Post your email status here! Refer Cox Support to this thread.

Since the 4/24/19 email security rollout, users have been experiencing various kinds of email issues. This is now day 13. I can receive email, but when I send email, it shows in my sent box, but is n...
spongebob128's avatar
spongebob128
New Contributor

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).

pianoman's avatar
pianoman
New Contributor II
5 years ago

I am having this same exact issue since 4/24 (CXDNS error due to no reverse DNS). This worked up until 4/24. Many external IP addresses do not have reverse DNS entries.

Shame on Cox for the lack of notice of these changes AND the lack of response.

  • Cards47's avatar
    Cards47
    New Contributor III
    5 years ago

    Yeah, ya can’t fix stupid!