if you want to use ubuntu + postfix + laravel to do a mass email system.
but if there are too many emails, it will be 504 if you send them for a while. This problem can be solved with set_time_limit (0)
but feels too inefficient.
is there any other way to directly give the recipient address to postfix at once?
ask postfix to send more than one email at a time?
ask experienced friends to coach