Rick Root wrote: > Jochem van Dieten wrote: >>> Spamcop listed houseoffusion because of some DNS/hostname configuration >>> issues. >> SCBL does not work that way. SCBL lists IP addresses based on >> spam reports: http://www.spamcop.net/fom-serve/cache/297.html > > Actually, Spamcop *DOES* work that way sometimes, and in this particular > case, it did. House of Fusion was blacklisted because of DNS and > hostname issues, as Michael has already pointed out. > > When I looked up the IP address, it said it was the DNS mismatch that > caused it to be blacklisted, because spamcop feels that any mail server > trying to masquerade as another host with a different IP address is > probably a spammer.
That is fun for anybody running CF 5 and older and talking to a host that forwards to SpamCop: they use the hostname of the recipient SMTP server instead of their own hostname in the HELO dialogue :) >> I am a big fan of RBLs, but I very much question the wisdom of >> using SCBL to block email. Do you really want to give anybody >> with a SpamCop account the power to stop your email? > > It takes more than "anyone" it takes numerous "someones". One spam > report to spamcop doesn't cause you to get blacklisted. It takes 2 reports. They don't have to be from different sources. > I block the spamcop listed email for two main reasons. > > #1 - my users don't want to do their own filtering > #2 - if someone (a person not a list) sends legitimate email and their > mail server is listed in spamcop, they'll get a bounced message that > tells them why. That's actually better than the mail being accepted and > thrown into a spam folder, because the original sender gets immediate > feedback. These features are not unique to SCBL or even to RBLs. But rejecting email instead of accepting and then sending a non delivery notification is why I am such a fan of RBLs and greylisting. Once you have responded "OK" to the other SMTP server and have accepted an email message you are responsible for it. There really is no good way for a postmaster to deal with suspected spam then: you can not delete it because it might be a false positive, you can not bounce it because 99% of the time you are bouncing to an innocent bystander so you have no other option but to deliver it. Outright rejection is indead the way to deal with this. Jochem ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~| Message: http://www.houseoffusion.com/lists.cfm/link=i:4:232869 Archives: http://www.houseoffusion.com/cf_lists/threads.cfm/4 Subscription: http://www.houseoffusion.com/lists.cfm/link=s:4 Unsubscribe: http://www.houseoffusion.com/cf_lists/unsubscribe.cfm?user=89.70.4 Donations & Support: http://www.houseoffusion.com/tiny.cfm/54
