Try posting that to the mailop list. I had been having trouble with att.net for about a month, and I filled out the form at http://att.net/blocks/ 3 times with no response. I posted to mailop a few days ago and they resolved the issue within an hour. ...then a few days later I received the response to the form that my IP had already been unblocked. Even though they say they will get back to you within 2-3 days, it's more like 10-14. -A On Tue, Aug 30, 2016 at 6:22 AM, Webhosting.net Admin <admin@webhosting.net> wrote:
A few of our exchange IPs get blocked intermittently, but only by ATT. Ips are clean, no issues, we’re diligent about finding and fixing these types of issues as it has a large impact.
It would be very helpful to know why the IP below got blocked so we can find and fix the problem to prevent further listing. We have a few ips in rotation and some have no issue. It’s a “blind” listing, so we only find out about it when customers complain that they getting blocked.
ff-ip4-mx-vip1.prodigy.net #<ff-ip4-mx-vip1.prodigy.net #5.3.0 smtp; 553 5.3.0 flph399 DNSBL:ATTRBL 521< 67.215.167.170 >_is_blocked.__For_ information_see_http://att.net/blocks> #SMTP#
Any info/help would be most helpful.
Many thanks,
Webhosting.net Postmaster