Cogent blacklisting ?

Chris Richardson crichardson at
Mon Mar 26 01:10:57 CEST 2007

In all my years on cogent i have never run into this problem that is why 
i asked to get both rejects today just caught me off gaurd o well no 
harm no foul thanks for your time and help

Res wrote:
> Chris,
> Sadly it seems Cogentco still don't do anyting about their spamming users
> (they were in my local block lists for well over 2 years, I took them 
> out just prior to last christmas as the influx to here seemed to have 
> died off) I guess they are still targeting others though.
> That IP is not in any common RBL's that I'm aware of as of 2 minutes 
> ago but as O'rielly says " by local blocking list " chances are it'll 
> be there for a long time, time to change ISP's since they wont clean 
> their act up, and whatever you do, don't go to comcast because they 
> are worse.
> On Sun, 25 Mar 2007, Chris Richardson wrote:
>>   SMTP error from remote mail server after RCPT TO:<xxx at>:
>>   host []: 550 IP is blacklisted:
>>   Performance Systems International
>>   SMTP error from remote mail server after RCPT TO:<xxx at>:
>>   host []: 550-Host is 
>> blocked:
>>   550 Mail refused from egregious spam haven
>>   550 (CogentCo) by local blocking list

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