maxsec at gmail.com
Wed Jun 8 00:38:43 CDT 2011
Have a look at the Hermes mail system at cam.Ac.uk, built buy among
people Philip Hazel of exam fame
It will give you some insight into the challenges of building a
scalable high perfomance mail system.
On Wednesday, 8 June 2011, Steve Spence <steve.spence at arkitechs.com> wrote:
> That what I found with most the open source /Linux mail products that
> customizing and extending can be difficult and a lot of time and effort.
> The exchange is one of the easiest ways to roll out large scale web base
> email if just expensive in upfront costs.
> Interns of Hotmail they initially use to use Solaris for the MTA and
> storage and FreeBSD for the web services ( Apache ) they suppose of migrated
> windows by now using windows products Again I think this highly customize
> solution which may not be very useful http://en.wikipedia.org/wiki/Hotmail
> we went through a similar search for a high volume solution which we could
> customize and brand right now we using we high a hybrid of
> (exchange/Icewarp/Atmail/ two layers of spam filtering )
> -----Original Message-----
> From: Ryan Pugatch [mailto:rpug at linux.com]
> Sent: Tuesday, June 07, 2011 11:40 PM
> To: John LeCoque
> Cc: nanog at nanog.org
> Subject: Re: Hotmail?
>> What about starting with Zimbra's Open Source edition, and building
>> onto it?
> Let me just step in here and say.. it's tough to build onto Zimbra. At
> work, we support ~1000 users on Zimbra (network edition), with hundreds of
> thousands of messages flowing through daily, and it doesn't like you
> tinkering with stuff under the hood. Most of your customizations get blown
> away when you upgrade. That said, I know of some organizations who
> customize it like crazy (I had heard that Lycos's free mail system is
> Zimbra-based, and Yahoo as well). Once you deviate, though, don't expect to
> stick to Zimbra's releases. It might be easier to just start fresh with
> postfix, amavis, spamassassin, dovecot, etc. We've also run into some pain
> in scaling it out (they want you to use Red Hat Clustering, but there's no
> great way to scale out the mail store regardless).
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