On 26/09/2019 02:56, Richard James Salts via Exim-users wrote: > It's using the
> $authenticated_id expansion from what I understand. Is there a way to alter
> this? Would it be in the server_set_id on the authenticator?
Since it's just a string, you can edit it how you like.
Probably at just before you create the A-R header with it.