>I'm evaluating the Mcaffee's WEB SHIELD STMP 4.5 and in order to
>install it I changed the SMTP port from 25 to 26...
>Everything works ok but the server is completely open to spam now
>although all the SMTP security options are enabled (relay to local
>users only)!!!!
"relay to local users only" is NOT a "security" option but SPAMMER
bait. Imail's only sure defense against relay hi-jacking is "relay
for addresses" + "UNcheck SMTP AUTH reporting" + anti-spoofing of
ip's at border router. But spammers don't spam at Imail at port
26, since that's not the standard SMTP port.
>Any suggestions???
If Web Shield at port:25 is an open relay, then talk to your Web
Shield supplier about how to close it.
Take a look Mail Essentials for SMTP from www.gficomms.com. They have
anti-relay in their anti-virus solution.
Len
http://BIND8NT.MEIway.com: ISC BIND 8.2.2 p5 installable binary for NT4
http://IMGate.MEIway.com: Build free, hi-perf, anti-spam mail gateways
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