Need abuse/postmaster contact for AT&T to resolve IP block

• Subject: Need abuse/postmaster contact for AT&T to resolve IP block
• From: admin at webhosting.net (Webhosting.net Admin)
• Date: Tue, 30 Aug 2016 13:22:43 +0000

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

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