OT: Spamcop BL - good or dangerous?

Tomoiaga Cristian cristi at elvsoft.com
Wed Nov 29 12:34:21 GMT 2006

SpamCop is #1 in blocking mail from yahoo and yahoogroups at my server.
Is there a solution except spam.whitelist to tell MailScanner not to do any
checks on yahoogroups and yahoo ? (*@yahoo.com and yahoogroups is already in
spam.shitelist but It is marked as spam because it is listed in spamcop)

-----Original Message-----
From: mailscanner-bounces at lists.mailscanner.info
[mailto:mailscanner-bounces at lists.mailscanner.info] On Behalf Of Paul Kelly
:: Blacknight Solutions
Sent: Wednesday, November 29, 2006 2:12 PM
To: MailScanner discussion
Subject: Re: OT: Spamcop BL - good or dangerous?

Gerard Seibert wrote:
> On Wednesday November 29, 2006 at 06:21:54 (AM) Arthur Sherman wrote:
>> Sometimes I get a message from any of lists I'm subscribed to, that mail
>> my address bounces.
>> And as a reason I see Spamcop blocking sender's (legitimate) server.
>> Here comes the question:
>> What would you use instead of Spamcop?
>> It gotta be free service, and the more lists the better: right now,
>> is #1 blocking BL in the logs.
>> I am afraid if I drop it, the blocking will be worse.
> SpamCop does not block legitimate servers. I use SpamCop myself.

I'm sorry, but that is complete rubbish. SpamCop users blatantly report
every and any e-mail they receive even double opt-in mailing lists etc.
It is an extremely dangerous BL to use if you wish to get legitimate e-mail.

The only rbl of use (at smtp transaction time) is xbl. Anything else
will drop legitimate mail, that is a fact.

We host 16k domains, of which we're scanning around 5000 for spam and
other nasties. We see 200k mails a day through mailscanner with a factor
of 5 being rejected at smtp time by xbl.

We use spamcop in SA to add a few points to the spam score, we've found
that this is the only use for spamcop today. Anything else results in
users complaining on a daily basis that mail is being lost.

Bottom line, Spamcop should not be used by ISP's, HSP's at a bare
minimum at smtp time and for the rest of the people who admin their own
mail servers I would highly recommend not using it. xbl is extremely
safe to use.

Paul Kelly
Technical Director
Blacknight Internet Solutions ltd
Hosting, Colocation, Dedicated servers
IP Transit Services
Lo-call: 1850 927 280
DDI: 059 9183091

e-mail: paul at blacknight.ie
web: http://www.blacknight.ie
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