Amos Jeffries wrote: > Joel Jaeggli wrote: >> Matus UHLAR - fantomas wrote: >>> On 04.12.08 07:29, Mike Rambo wrote: >>>> I guess you could also use a no_cache directive on squid itself to >>>> prevent caching of traffic to your ISP but IMO the firewall rule is >>>> what I would probably prefer. >>> That wouldn't work because squid does not understand SMTP >> >> the spammers who abused open http proxies with lax security policy to >> send smtp via port 25 would beg to differ, but that's sort of a >> needlessly convoluted workaround. (and now in the past as a spam threat) > > Spammers primarily abuse the connect method. And secondarily abuse the > siilarity between HTTP and SMTP by sending SMTP through port 80 with > partial HTTP headers to cause proxies to not reject it. > > This is one reason why I thoroughly dislike the ISP who uses port 80 for > actual SMTP. They are encouraging such abusive behavior to be done > through all proxies everywhere. lstening on 80 for smtp is just retarded and there's no helping those people... :/ > Amos
