Re: [exim] Cluster

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Author: Alain Williams
Date:  
To: Ian Eiloart
CC: exim-users
Subject: Re: [exim] Cluster
On Mon, Aug 17, 2009 at 10:21:46AM +0100, Ian Eiloart wrote:
>
>
> --On 14 August 2009 22:59:51 +0100 Alain Williams <addw@???> wrote:
>
> >
> >>> Any sort of clustering or load balancing would be done outside of Exim.
> >>> high-availability is "built in" to SMTP by the ability to set multiple
> >>> MX records, and the ability to retry.
> >
> >Although you would need some 'high availability' mail store that exim
> >could deliver to ...
>
> That's not quite so important. Some MUAs may lose emails when they can't
> deliver (especially poorly written web applications, for example). Or, they
> might put the mail into a local queue that doesn't get tickled for a long
> time - perhaps you're sending last minute instructions to your staff before
> you go on leave for a fortnight, for example!


I always run exim on the local host, even if the ''main'' exim MTA is just in
the next slot in the rack. That provides the reliability against the main MTA
being down for a bit.

--
Alain Williams
Linux/GNU Consultant - Mail systems, Web sites, Networking, Programmer, IT Lecturer.
+44 (0) 787 668 0256 http://www.phcomp.co.uk/
Parliament Hill Computers Ltd. Registration Information: http://www.phcomp.co.uk/contact.php
Past chairman of UKUUG: http://www.ukuug.org/
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