>Just setup server and would like to know about relay. I have domains (27)
>and all are remote. They connect tought thier ISP to the mail server now i
>want then to be able to send email to anyone they want, but do not anyone
>except for our users to be able to relay, what type of relay is this and if
>anyone has any suggestions on the best relay practices .
The only secure relay option is "relay for addresses". This means
Imail users not in the set of relayed-for addresses must use SMTP
AUTH to relay through your Imail. All other relay options are
insecure (except for no relay, but that's unusable).
I recommend that your users send their outgoing mail through the
access providers' SMTP servers. Simpler, quicker, and more reliable
for everybody. In fact, some access providers force all mail relay
to go through the access providers mail servers.
Len
http://BIND8NT.MEIway.com : Binary for ISC BIND 8.2.3 for NT4 & W2K
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