VanLUG Email Archive
Alan Hodgson (im@witzend.nu)
Fri, 18 Dec 1998 09:11:47 -0800
On Thu, Dec 17, 1998 at 06:36:48PM -0800, Chris Dingwall wrote:
> Hey there
>
> Lately I've been trying to setup my machine to act as a stand-alone mail
> server that will let users send mail and receive email off my machine
> from the internet -- just like an ISP's mail server. I've got the
> receiving part done easily with a POP3 server, but I've been having some
> problems with configuring sendmail. When I try to send mail as a user to
> somebody else, the mail server replies with "Access Denied" or "Relaying
> Denied" error messages.
Your Sendmail is (correctly) preventing unauthenticated relay. You can
override this to permit anyone to send mail through your server, but
you probably don't want to do this, as spammers will eventually find you
and use you to send out their junk.
A better solution is to go to:
http://www.cynic.net/~cjs/computer/sendmail/poprelay.html
(yes, Curt's site - he has the best POP before SMTP solution available
according to everyone who has examined the alternatives).
... and implement the solution presented there.
> Also, when I send mail to a user, I get a
> "Returned Mail: Service Unavailable" message back.
>
Your local mailer is not configured correctly or doesn't exist. Check
out the Mlocal definition in your sendmail.cf to see what it's trying
to run.
-- There are only a few clues to go around, and the Internet is growing geometrically. I leave the math to you. - Scott Bradner
This archive was generated by hypermail 2.0b3 on Fri 18 Dec 1998 - 09:12:33 PST