DFS wrote: > If an ISP does not wish to permit this kind of thing, it could > restrict DNS queries to its own DNS servers, and they could return a > record of smtp-out.paranoid-isp.com for all SRV queries for SMTP > servers. This would achieve the goal of having outbound mail flow > through the ISP's servers. (I suppose if you somehow knew the IP > address and port of a listening external SMTP server, you could > connect, but that wouldn't be feasible for spambots.)
IIRC, AOL actually intercepted all outgoing TCP connections to port 25 for a time. -- Matthew.van.Eerde (at) hbinc.com 805.964.4554 x902 Hispanic Business Inc./HireDiversity.com Software Engineer _______________________________________________ NOTE: If there is a disclaimer or other legal boilerplate in the above message, it is NULL AND VOID. You may ignore it. Visit http://www.mimedefang.org and http://www.roaringpenguin.com MIMEDefang mailing list [email protected] http://lists.roaringpenguin.com/mailman/listinfo/mimedefang
