Thoralf Will writes:
Currently we are using a combination of cron and reply-o-matic but
it's really far from being perfect.
I suggest using procmail to weed away FROM_DAEMON mail etc, then
formail|at to do the reply. Something like this should construct a nice
autoreply and delay sending the result:
( echo '/usr/sbin/sendmail -t' ; formail -rt ; cat boilerplate ) | at +12hours
Now, in sieve, assuming this sort of thing were to be done in sieve at
all, wouldn't it be natural to do it with an RFC2852 argument for the
vacation extension?
Arnt