QUOTE(edward.lin @ Nov 4 2008, 09:30 PM)

my company mail system have been blocked by some of my clients stating SpamCop as the source. I am not sure if the clients are just using the list or if they filter their mail through SpamCop.
SpamCop.net does not touch or even see your e-mail in the scenario you describe. Any 'blocking' action is based on the recipient's configuration of their server, typically to use the SpamCopDNSBL in a blocking fashion, which SpamCop.net does not recommend.
QUOTE
we can not send mail to our client,so many urgent mail delay,we faced huge problem !
Correction .. you can send as much e-mail as you want. The question is whether the recipient will actually allow that traffic onto their servers.
QUOTE
Could you help us settle it !
Any help would be much appreciated.
we got follow information when we send mail:
Server Response: '451 Blocked - see
http://www.spamcop.net/bl.shtml?96.251.108.178',
I have checked MANY spam blocking sites and this is the only one I am listed on.
But the silly question seems to be .. did you follow the link provided?
http://www.spamcop.net/w3m?action=checkblo...=96.251.108.17896.251.108.178 not listed in bl.spamcop.nethttp://www.senderbase.org/senderbase_queri...=96.251.108.178Volume Statistics for this IP
Magnitude Vol Change vs. Last Month
Last day ........ 4.3 ....
334%Last month .... 3.6
Can you justify this (increase in) traffic as not being apsm spew?
Hostname: pool-96-251-108-178.lsanca.dsl-w.verizon.net
This really doesn't look like a 'real' e-mail sever. Date of first message seen from this address
2008-10-02 ???? An actual 'new' e-mail server install or the date of the initial infection of a system connected with that IP Address?
Real-time blacklists
dnsbl.sorbs.net
cbl.abuseat.org
pbl.spamhaus.org
The SpamCopDNSBL is/was not the only BL involved with this IP Address.