To answer this question my ISP uses DirectAdmin and I believe exim is packaged with that.
> On May 10, 2023, at 6:52 AM, Jeremy Harris via Exim-users <exim-users@???> wrote:
>
>
> On 10/05/2023 12:02, Robert Nicholson via Exim-users wrote:
>> Exim version 4.96-58-g4e9ed49f8 #2 built 07-Jan-2023 06:47:04
>
> Who built it? What is the provenance of the sourcecode?
>
>> mainlog:2023-05-09 13:49:51 1pwUHO-0005xx-1O SIGSEGV (null pointer indirection)
>
> Definitely a bug; you should not be able to induce this by doing
> something odd in a .forward.
>
> For debugging it, it'd help if you could provide the matching .forward
> rule (if there is indeed one), and even more if you could get a coredump.
>
> The "failure to transfer data" log is a follow-on resulting from
> the transport process dying (and not providing data) not ignore that.
>
> Is the message successfully delivered on a subsequent queue-run
> (grep the log for the message ID)? I see several failed tries in
> the log extract you gave.
>
> If not, and the message is still queued, please try forcing a delivery
> with debug enabled ("exim -d+all -M 1pwUHO-0005xx-1O 2>&1 | tee debuglog")
> --
> Cheers,
> Jeremy
>
>
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