On 2020-07-15 at 10:02 +0100, Jeremy Harris via Exim-users wrote:
> On 14/07/2020 18:57, Johnnie W Adams via Exim-users wrote:
> > Now I'm replacing that box with a newer one and wondering how to move
> > the queue of frozen mail from the old machine to the new--or if I'm better
> > off just waiting till it all expires.
>
>
> As to how: just copy the files. And delete the old ones. Preferably
> having ensured the daemon on the old machine is not running.
>
> I'm not answering the "whether to"; that's policy.
Be sure to transfer the -D files before the -H files; probably in order
"-D", "-J", "-H".
But otherwise, yes.
If you want to transfer them in one batch, then make sure the daemon on
the _receiving_ side is shut down first too. Basically, Exim treats the
-H headers file as its control file. If it's present, a queue-runner
will try to route/deliver etc and then get upset if -D is missing. If
-D is present without -H then that's just new mail coming in and a
queue-runner will just skip to the next item. Meanwhile -J are the
journals, if you've enabled that for your Exim.
So:
1. shut down old Exim
2. either shutdown new Exim temporarily and sync all files then start
new Exim back up, OR:
3. Sync the -D files
4. Sync the -J files if any
5. Sync the -H files
-Phil, hoping I haven't gotten this all backwards, going just from
memory.
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