On 10/02/2024 16:24, graeme vetterlein via Exim-users wrote:
mail_spool:
debug_print = "T: appendfile for $local_part@$domain"
driver = appendfile
file = /var/mail/$local_part_data
delivery_date_add
envelope_to_add
return_path_add
group = mail
mode = 0660
mode_fail_narrower = false
So I take these together to mean:
exim will use "apendfile" to append mail to /var/mail/<myuserid>
ONLY IF this transport is the one being used for your delivery.
The delivery lines ("=>") in the log should give a hint.
and it will use fcntl(2) (I'm assuming advisory locking?)
I'm assuming you've read it right. Yes, "fcntl" does an F_SETLOCKW.
If you're really nervous, I spot a debug output in the transport code which
says what sort of locking method is being used.
--
Cheers,
Jeremy
PS: "Exim". Not "Exim 4" (unless you're a committed Debian-ite),
Version 3 of Exim went obsolete twenty years ago.
There is no Exim 3, nor Exim 5.
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