Send emails at arbitrary times

[jmerdich]

We currently depend on signals from web requests to send emails. Ie. someone clicks a link, an email is sent as a side-effect. This does not work for time-sensitive or delayed emails, and we need a solution for that.

[gmorell]

The goto solution here is celery, but its a bit heavy for most deployments and setting it up on WPI may have some roadblocks. I've also used django-cron for this sort of thing before.

[jmerdich]

I know, but this is dependent on the WPI server. I doubt they'll let us put celery on it, and I'm really not sure how locked down it is in regards to cron. Further research needed.

[jmerdich]

Possible Times to send:

• Crew report auto-poke
• Yearly officer change reminder
• Billing auto-poke