alphagov/signonotron2 — pull request #279 by steventux (2014-10-31 17:26:03+00:00)
Title: Send locked account explanation email

A user signing in unsuccessfully and locking their account should be sent an email explaining that their account has been temporarily locked.

- Add explicit mailing method for explanatory 'account locked' email with unlock time information.
- Deliver this email asynchronously.

https://www.agileplannerapp.com/boards/173808/cards/5252