> On Sep 14, 2018, at 4:51 PM, Bill Cole > <postfixlists-070...@billmail.scconsult.com> wrote: > >> It happened just one time too many today, in a rushed moment >> sending the wrong email to the wrong person. >> >> Is it possible to exclusively delay sending mail to specific >> recipients that appear on in a list? > > That is logically a feature that belongs in a mail client, not a mail server. > Postfix offers no direct way to do anything like it. > > An indirect way to implement something like that would be to add a > check_recipient_access restriction with a list of addresses mapped to HOLD. > You could then either manually or in an automated way run "postsuper -H ALL" > to release the held mail or write something more complicated to selectively > un-hold messages based on age.
Postfix 2.3-20051202 introduced conditionally compiled code for a "DELAY" access(5) action, but this never became a default-enabled feature. You'd need to compile Postfix with "-DDELAY_ACTION" to get it, and I don't know how recently this was last tested. It may no longer work, and perhaps was never ready for prime-time (otherwise might have made it as a standard feature into some release). -- Viktor.