Hosting multiple email domains on single server

Posted by sharjeel on Server Fault See other posts from Server Fault or by sharjeel
Published on 2010-04-27T08:24:41Z Indexed on 2010/04/27 8:33 UTC
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email

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mailserver

Is it practically possible to host multiple email domains on a single machine with single IP address?

Considering that spam filters do RDNS and in that case one IP address may host only one domain to pass the spam filters.

If not, how does the hosted email work? Do they have get a separate IP address for each domain's email they host?

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