Am 14.08.24 um 15:31 schrieb Kurt Jaeger via Exim-users:
Hi!Recently, I came upon a problem without a solution: If I trigger an autoreply (for example because of vacations), how do I get the system to add a DKIM-header for the proper domain ? Because of the <> envelope-from, how can the proper sender-domain (and dkim key) be found on the sending host ?
To answere your original question: you don't do this.You send the auto-reply with the correct mailaddress or no.re...@your-domain.com.
To avoid mailloops, you simply add the incoming address to a db with the timestamp when you answere and check up front in your autoreply code,
that the sender is not in that database for a specific time-frame. Now you can use DKIM as intended.You will need a little helper app that manages the autoreply for you. A pure exim solution may be too complex.
Best regards, Cyborg
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