OT: Spamcop BL - good or dangerous?

Gerard Seibert gerard at seibercom.net
Wed Nov 29 11:58:24 GMT 2006

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 to
> 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, Spamcop
> 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.

Do you have your own Domain Name and dedicated IP or are you utilizing an
ISP? If the latter, then you need to contact them and get them to
correct the problem. If the former, then contact SpamCop directly and
find out exactly why you are being BL'd. For the record, SpamCop uses a
conglomerate of other RSB's and DNS's to filter mail. The problem may
very well lie with one of them.

I just did a SPAM database look-up and you were not listed. I did
discover this though regarding your mail servers:


WARNING: One or more of your mailservers is claiming to be a host other
than what it really is (the SMTP greeting should be a 3-digit code,
followed by a space or a dash, then the host name). If your mailserver
sends out E-mail using this domain in its EHLO or HELO, your E-mail
might get blocked by anti-spam software. This is also a technical
violation of RFC821 4.3 (and RFC2821 4.3.1). Note that the hostname
given in the SMTP greeting should have an A record pointing back to the
same server. Note that this one test may use a cached DNS record.

mx20.netvision.net.il claims to be host mxin6.netvision.net.il [but that
host is at (may be cached), not]. 


You might want to correct that problem before simply blaming an arbitrary
RSBL service.


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