synapsestudios/synapse-base — pull request #102 by synbot (2014-07-29 16:56:17+00:00)
Title: Email Whitelist

## Email Whitelist

### Acceptance Criteria
1. Email sender service implements whitelist logic.
- Whitelist is a list of valid domains and email addresses.
- If an email address is not on the whitelist, send it to the trap email address.
- Assumes Gmail style plus-notation and injects invalid email addresses into the trap address. (If the trap address is trap@example.com, foo@bar.com becomes trap+foo+bar.com@example.com.)
1. Whitelist specified in config.

### Tasks
- Import whitelist logic from former project template.

### Additional Notes
- None