We are a web-hosting company and are having problems sending emails to a client of us with a sbcglobal.net email address, from 2 different email addresses and two different IPs
host al-ip4-mx-vip1.prodigy.net [126.96.36.199] SMTP error from remote mail server after MAIL FROM:: 553 5.3.0 alph165 DNSBL:ATTRBL 521< 188.8.131.52 >_is_blocked.For assistance forward this email to @abuse-att.net
Same happens when sending emails from another IP - 184.108.40.206
We have very strict policies against spam and restrict a lot our customers from sending newsletters, so there should be no reason for being blacklisted... we are not on any RBL
Would you please unblock those 2 IPs for us, 220.127.116.11 and 18.104.22.168?
We would appreciate that since need to regularly contact our customer at an sbcglobal.net email address
Hello, @Harpwro We understand how much of a hassle this could be. You would need to reach out to report your complaint to firstname.lastname@example.org, Someone will get back to you in help get your IP addresses unblocked. Charles, AT&T Community Specialist
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