I’m currently building a wordpress plugin for a charity, and am wondering what my options are for sending out bulk emails. They have an event once a year, and before the event, they need to send out 600-1,200+ emails, from a list of emails in their database. I was thinking about building an emailing system, with a queue, but since they only really need to send stuff out one month out of the year, a cron job seems a bit excessive. Are there anyways to create a cron, and then remove it after the action is complete? Are there any alternatives to a cron for automating tasks? I’m just brain storming at this point, so any ideas would be very helpful.