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Old 03-24-2007, 01:59 AM
shacker shacker is offline
Junior Guru Wannabe
Join Date: Dec 2003
Posts: 40

RCN blacklist

I had a short-lived episode where one of my customers was spamming. I was able to shut it down quickly, but not quick enough to avoid getting SMTP blacklisted by RCN. The response from their mail servers is:

SMTP error from remote mail server after initial connection:
host []: 554

No information there on what blacklist system they use, or how to get de-listed. Nothing that I can find on RCN's web site. Mail to postmaster is ignored. Mail to support is ignored. Can't get past 1st-level support over the phone. I'm stuck. Blacklisted and can't get off.

Anyone dealt with this with RCN before? Any tips?


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Old 03-24-2007, 06:38 PM
shacker shacker is offline
Junior Guru Wannabe
Join Date: Dec 2003
Posts: 40
Well, they seem to have de-listed me finally. No acknowledgement from them. Very frustrating that they provide no official mechanism for delisting.

Old 03-24-2007, 09:34 PM
sunpost sunpost is offline
WHT Addict
Join Date: Dec 2002
Posts: 124
if it happens again, you might want to post at dslreports. there are some great RCN techs that frequent the forum...

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Old 03-26-2007, 02:59 AM
shacker shacker is offline
Junior Guru Wannabe
Join Date: Dec 2003
Posts: 40
Thanks for the tip sunpost - you're right - great folks over there.

Old 03-30-2007, 08:06 PM
wiredmedium wiredmedium is offline
Junior Guru Wannabe
Join Date: Oct 2004
Posts: 36
our datacenter is on the rnc backbone. When ever we see an blacklist issue we email them at When ever we have any issue they get back to us in a few hours.


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