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E-mail server for two domains

I have a linux box running red hat 6.0. It is already the sendmail and pop mail server for one domain and I am interested in setting mail services up on it for a second domain.  Is this possible or do I need a seperate server and if it is possible can someone offer some suggestions as to how I might do it?

Thanks
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unclesid
Asked:
unclesid
1 Solution
 
jarviscCommented:
You can have loads of domains on the one machine...

You will need to set the MX records in whatever DNS holds the domains to point to you machine.

Then edit the /etc/sendmail.cw file and add the domains you are willing to accept mail for.

Relaying mail is another issue. The details for that is in /etc/mail/
here you can set which domains or even IPs can relay mail through your machine and onto the internet...

cheers,
jarvisc
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unclesidAuthor Commented:
That sounds pretty straight forward but how would I distinguish between users of the different domains?  For example, all mail that is sent through the system now has @xxx.com after the username but if I had two domains I would want @xxx.com for some users and @yyy.com for other users.
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liyangCommented:
Have you looked into qmail for doing this? Although a bit fiddly to install at first (no nice ./configure scripts!)domain management seems quite a bit easier with that... You can even have user-managed domains if you want. (you set it up so that all mail to yyy.com is forwarded to a certain user, that user then puts where they want foobar@yyy.com to be forwarded to into ~/.qmail-yyy-foobar, and so on, the rest is either bounced, or can be caught with a ~/.qmail-yyy-default. I'm probably not explaining myself very well here! ^^;;;)

Anyway, the initial hassle of installing it is well worth the benifits that it provides, IMHO.
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