All my remote users will be coming in via USWest, could I add the
following to /etc/access to give full access to any host at uswest?:
uswest.com              RELAY

then adding this to the .mc file:
FEATURE(access_db)

Would this reject everyone else outside my domain except those coming
in via uswest (isp)? Would my local users have full access to send 
and receive mail?

>2.) Is it possible to allow remote as well as local users full 
>access to send mail anywhere they wish and block relay option at the 
>same time? Is so, what addition to the mc file must I make?


Sendmail 8.9.0 or newer has relaying disabled!

Does this mean that NO mail will be accepted from any domain/host
outside your domain, unless that host/domain is added to the
/etc/mail/access file?

I guess I'm a bit confused between accepting mail destined for your
domain,  allowed remote users sending mail via your host and a 
spammer
using your host as a relay?!

One other thing, is it worth using FEATURE(rbl)??
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Thanks...

- Joseph Lee Pereira
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