newbie questions on setting a brand new qmail in FC5

My qmail is already setup, it can send and get email at the stage.
And it can be telent from other machine to get normal response.

I would like to setup the qmail as a relay for my company,
let say company domain is: onepiece.com and my ISP domain is:
twopiece.com

How can I set the qmail accept all emails "from twopiece.com" and all
emails "to onepiece.com"?
How to relay all the emails in qmail relay to another server, let say
domain: mypiece.com?
How can I setup the SMTP AUTH? Do I use the qmail-smtpd-auth?

Thanks a lot.

Actually, my main purpose is just wanna be a backup mail server,
just collect all the mail following tcp.smtp.
And then forward all mails to the main mail server. No local mailbox.

Thanks a lot.

"Jay" <cylix2000@gmail.com> writes:

> Actually, my main purpose is just wanna be a backup mail server,
> just collect all the mail following tcp.smtp.
> And then forward all mails to the main mail server. No local mailbox.

Just add the domain you want to back up to control/rcpthosts. qmail
will automatically accept mail to it and try to forward it to the
primary server. Of course you'll need to create an MX record for the
domain pointing to your server in order for any mail for that domain
to be sent to your server in the first place.

--
Dave Sill Oak Ridge National Lab, Workstation Support
Author, The qmail Handbook <http://web.infoave.net/~dsill>
<http://lifewithqmail.org/>: Almost everything you always wanted to know.