On 13 Apr 2019, at 17:15, Rainer Dorsch via Exim-users <exim-users@???> wrote: > Can anybody recommend one of the approaches or even propose something
> better...?
Stop exim.
Disable exim from running at startup.
Backup your config.
Update
Use diff to check the config; reinstate the original one if necessary
Restart exim.
This will rely on you doing it in a timely fashion - so not over a matter of days, but minutes/small number of hours - and lets the machines sending mail to you manage their retries according to site specific configuration. If you’re not listening, you’re not receiving, so no glitches can occur!