E-Mail scaling question

Diego Arias dak.col at gmail.com
Tue Dec 21 20:08:44 UTC 2010

On Tue, Dec 21, 2010 at 2:39 PM, Mark Moellering <mark at msen.com> wrote:

> Hello All,
> My company needs a [new] e-mail solution for a product rollout.  Rather
> than
> have a few e-mail domains with lots of addresses, the solution we need is
> for
> a very few (mostly one, very rarely more than 3) accounts on upwards of
> tens
> of thousands of domains.
> I can't find any info on scaling sendmail or postfix to this many domains.
>  If
> anyone has any info, knowledge, horror stories, etc. It would be greatly
> appreciated
> Also, I am assuming that to play nice, we need a dedicated IP per domain,
> so I
> may have to survive setting that up before I even get to the e-mail.  If
> anyone knows of a legitimate way to set up an e-mail domain on a shared IP
> and
> not have half of the e-mail servers assume we are spammers, let me know.
> Thanks in advance
> Mark Moellering
> classcreator.com
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You can set an IP only for mail for all the domains and point the MX Records
to it. The PTR record just point it to the server real name and thats it.
Still Going Strong!!!

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