Re: [exim] Exim as a backup MX server

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Author: Gedalya
Date:  
To: exim-users
Subject: Re: [exim] Exim as a backup MX server
On 4/8/20 4:33 AM, Andrew C Aitchison via Exim-users wrote:
>
> Exim does recipient callouts and cutthrough delivery.
> Are either of these useful for an MX backup ?


Callout caching can be potentially useful when the primary is down. Not a complete solution of course.