Spamcop.net RBL blocking emails by mistake?

[René Berber]

Rob Morin wrote:

> Is it possible to get a false positive back from spamcop.net's RBL ?

Yes.  Anybody can make spamcop add a server address, and they do, many famous
non spammers have been there, Amazon, mail lists...

> I have been getting some complaints about spam being deleted, because it
> is seen as being on spamcop.nets list, so it gets a score of 10 and gets
> deleted....

Why are you using such a high score? MS uses 4.0 for spamcop.

> here is an entry in my log file...
> 
> Sep  7 03:36:57 peter MailScanner[15870]: RBL checks: 2380E69001E.DFE12
> found in spamcop.net
> Sep  7 03:36:58 peter MailScanner[15870]: Message 2380E69001E.DFE12 from
> 66.249.82.232 (team4ss at gmail.com) to zonecom.ca is spam, spamcop.net,
> SpamAssassin (score=8.638, required 4, HTML_MESSAGE 0.00,
> RCVD_IN_BL_SPAMCOP_NET 8.00, SARE_MSGID_LONG40 0.64)
> Sep  7 03:37:00 peter MailScanner[15870]: Spam Actions: message
> 2380E69001E.DFE12 actions are delete
> 
> I checked the IP and it was not listed. Is it possible to be listed at
> 7AM and then removed at 10AM? Plus its a gmail.com account/IP

No idea here, they (spamcop) probably found the bogus entry and changed it fast.
-- 
René Berber