I have two spam filters that relay outbound mail for a few dozen companies, and as such generate a fair amount of traffic. We are fairly strict with the spam filtering on outbound mail, but somehow end up blacklisted by ATT/Prodigy/Bellsouth a few times a year.
Got this a few months ago, posting publically so it makes it into the archives for the next guy.
Thank you for contacting the AT&T Postmaster.
We need the IP address of the server sending mail from you to our customer/s. This information is provided in the non-delivery report that would be returned to you in the event that there was a problem with mail delivery. If your mail server truncates that part of the error message, it may be necessary for you to conduct a manual session with our mail server to capture the blocked IP address. If you do not receive a rejection message then your messages are potentially being filtered as bulk. If you believe that to be the case, email mail-abuse-bulk@cc.yahoo-inc.com and request the Bulk Mail form to be whitelisted.
The more information you can provide about what you are trying to accomplish and the specifics involved the easier it is for us to help you. Please reply to this message with as much detail about your problem as possible, but specifically the points touched on above.
Regards,
Postmaster AT&T Client Security Management abuse_rbl@abuse-att.net http://att.net/blocks
On Tue, Apr 12, 2016 at 09:31:51AM -0400, Jeremy Parr said:
I have two spam filters that relay outbound mail for a few dozen companies, and as such generate a fair amount of traffic. We are fairly strict with the spam filtering on outbound mail, but somehow end up blacklisted by ATT/Prodigy/Bellsouth a few times a year.
-- Ken Chase - math@sizone.org
participants (2)
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Jeremy Parr -
Ken Chase