Need abuse/postmaster contact for AT&T

Mailman List Mirror (Read Only)
1

Our university just received notice from AT&T that our e-mail is being blocked without much explanation. As all universities send e-mail to the students and employees, it is impossible to tell what triggered AT&T's actions.

Does anyone have an AT&T contact? If you are from AT&T, please contact me off-line.

Thanks.

matthew black
e-mail postmaster
california state university, long beach

2

Matthew Black <Matthew.Black <at> csulb.edu> writes:

Our university just received notice from AT&T that our e-mail is being

blocked without much explanation.

As all universities send e-mail to the students and employees, it is

impossible to tell what triggered

AT&T's actions.

Does anyone have an AT&T contact? If you are from AT&T, please contact me

off-line.

Thanks.

matthew black
e-mail postmaster
california state university, long beach

From: test_reply <at> att.net [mailto:test_reply <at> att.net]
Sent: Wednesday, January 28, 2015 4:58 PM
Subject: Blocked Email Notification

Dear Postmaster:

We are writing to let you know that we are blocking messages addressed to

one of our customers at the domain

att.net by one of your customers at domain csulb.edu. The stream of

messages coming from your system

appears to consist mostly of unwanted commercial e-mail (UCE, or "spam").

To protect our system and to

ensure that it operates well for all of our customers, we have decided to

block all messages originating

from your system.

Please consult your logs to see what might be causing this situation and

how it can be fixed. Then visit

http://rbl.att.net/block_inquiry.html to request a removal of the block.

Most requests for removal

are honored within two days.

The specific error message received by your customer was:
550 Error - Blocked for abuse. See http://att.net/blocks

Thank you for your assistance in helping our respective customers communicate.

Best regards,

The AT&T Mail Team.

I'm seeing the same blockage on the site that I run, including those servers
that never send email. I suspect that are using the AHBL DNSBL which
recently shutdown and started responding with positives to all lookups.