> On 15:59 15.03.2003, you [Jonathan Angliss ([..])] wrote... Will you PLEASE stop putting my email address in the reply template. Thank you!
>> Actually it is more than possible. Some ISDN blocks sit in the same >> block (/24) as dialups, albeit a different subnet mask. When RBL >> lists blacklist addresses, they often don't research into the extent >> of the range, and just block the whole /24 range, while the dialup >> range stops halfway through that subnet. > While we're at it, this is a quick copy&paste from an MTA mailing > list, targeted at "how to block spammers": > > ***+++*** > > A few options that can be done, sender verification can be done. > Create a filter that contains > > if (($sender_host_name contains "ppp") or > ($sender_host_name contains "dsl") or > ($sender_host_name contains "pool") or > ($sender_host_name contains "dhcp") or > ($sender_host_name contains ".cpe.") or > ($sender_host_name contains "interbusiness.it") or > (($sender_host_name contains "cable") and ($sender_host_name does > not contain "bloor.is.net.cable.rogers.com"))) then And what is that supposed to achieve? And where does the checking occur. I think doing that kind of filtering is a little silly when it comes to spam. I get so much spam daily that has faked host details for the first 2 received lines that this kind of checking would be pointless. Also check the host details of this mail... sent over a DSL connection... bet you won't be seeing any details of that :) -- Jonathan Angliss ________________________________________________ Current version is 1.62 | "Using TBUDL" information: http://www.silverstones.com/thebat/TBUDLInfo.html
