Quoting Carl Wilhelm Soderstrom (chrome at real-time.com):
> > The second (bigger) problem is setting up the server so I can use e-mail
> > clients such as Netscape or Outhouse.  The real trick (I'm sure it's
> > turned off by default) is that the people using POP/SMTP clients will be
> > all over the internet so I can't filter by IP addresses.  I know, I'm
> > opening up a very nice SPAM relay but there's no good way around it that I
> > can tell.  What do I have to do to get Sendmail to accept connections from
> > SMTP/POP e-mail clients?
> 
> if you can't restrict the range of IPs, you need to look at setting up some
> sort of SMTP authentication. cyrus-sasl is the package we commonly use for
> that task here; but I'm hardly an expert on it, and other people would have
> to fill you in on the details of setting it up.

Grab these RPMs, they have all the stuff you need for authenticated SMTP.

http://www.mn-linux.org/members/tanner/

Scan down for RPMS. Get:

sendmail
sendmail-doc
sendmail-cf
cyrus-sasl
openldap

-- 
Bob Tanner <tanner at real-time.com>       | Phone : (612)943-8700
http://www.mn-linux.org                 | Fax   : (612)943-8500
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