-notfirsthop for every RBL when acting as MX

[Mariano Absatz <sp...@lists.com.ar>]

Hi,

as I stated in http://marc.theaimsgroup.com/?t=108515235700004&r=1&w=2 we're 
having lots of FPs because of large ISPs having most of their dynamic IPs 
RBL'd as open proxies and the like, since they don't filter ports and lately, 
most every virus gets you a free open proxy...

Since this server doesn't have to handle direct user connections at all, I 
was thinking about adding '-notfirsthop' to every eval:check_rbl() and 
eval:check_rbl_sub().

If I understand correctly, if a message is sent directly from an open proxy 
to my server, I'd be checking it anyway, but if it properly relays thru 
another server, then I'd be checking the relaying servers and not the 
originating one...  

If the relaying server(s) were open proxyies or open relays, then they should 
also be RBL'd and they'd be hitting.  

Is my reasoning and understanding correct?

Does anyone think I'm doing something very wrongly by doing this?

TIA


--
Mariano Absatz
El Baby
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It said, "Insert disk #3," but only two will fit!