>Whats the easiest way to secure my mail server (imail 6.06) from 
>being an open relay.

oh, just joined the list?

easiest: RTFM, RTFKB, RTFMLA, it's been explained godzillion times. :))))

< and they're all the same explanation >

>  We are an ISP and putting in all the ip's (even subnets) could be tough

SMTP AUTH is your friend.

>, but I'm considering it.  What about the "relay mail for local 
>hosts" or "local users" option?

Just Say No.

>Will this require any changes to the end users?

Cut off their hands, seal their lips, remove their wallets.

>There are maybe a thousand users already using.

Bite the Bullet and have them all switch to SMTP AUTH.

Read all about it:  http://www.mailops.com/Help/SMTP/SMTP%20AUTH.htm


Len


http://MenAndMice.com/DNS-training : In Austin, TX; SFO, CA; Paris, 
FR
http://BIND8NT.MEIway.com : ISC BIND 8.2.3 "NT3" for NT4 & W2K
http://IMGate.MEIway.com  : Build free, hi-perf, anti-abuse mail gateways


Please visit http://www.ipswitch.com/support/mailing-lists.html 
to be removed from this list.

An Archive of this list is available at:
http://www.mail-archive.com/imail_forum%40list.ipswitch.com/

Reply via email to