Illegal use of my server??

Mon May 19 11:35:18 PDT 2003

>I don't quite understand what happened. How was Squid used to relay mail? 
>I'm glad this thread came up because I am just about to deploy a Squid cache.

Using the CONNECT method.

CONNECT ip_mailrelay:25 HTTP/1.0
....

It will open a conection to the ip and act has a tunnel to the 
"conversation". It's used to proxy SSL connections.

Disable CONNECT method in Squid or limit it to 443 port. 