3 件の回答
A time based WF is just as good, but alternative just so you know you could create a scheduled class which will send the emails out at a certain time as the class will run at a set time.
2 different approaches with diff merits.
time based WFs will send 1 email at a time but will involve no code so will be quicker to produce and easier to maintain
Sched class could be built to send all emails in 1 go and could build in other operations at the same time if this is needed, but is more difficult to build and maintain
