You'll see crap like that in the mail logs from an attempted spam run
through an open HTTP proxy. This is where you've got an open HTTP
proxy,
and you send it a GET http://destination:25
Better spell it out Sam. "You don't have an open-relay SMTP server, but
you
*probably* have an open PROXY server". That is *majorly* worse than an
open-relay as it means people can - say - gateway access to your internal
servers via it (that's ANY internal server - telnet, smtp, web, etc)
Fix that proxy server :-)
No. No open proxy here. Actually, no proxy here at all. And that request
originated outside of my network. These lines where definitely errors and no
mail was delivered.
I believe this was just a probe to see if the machine was open. There was
only one request like this and the only result was a few errors in the logs.
--Rod
4 messages in net.sourceforge.lists.courier-usersRe: [courier-users] Re: DOS attack/pr...