#41 Issue 41: [Ops] AWS SES Email Bounce Handling


Description:
If we send "Cliff Ended" emails to deleted email addresses, our AWS SES sender reputation will drop.
Acceptance Criteria:

[ ] Set up an AWS SNS topic for SES Bounces.

[ ] Create a webhook endpoint POST /webhooks/ses-bounces.

[ ] Mark bounced emails as invalid in the database to stop sending to them.
Labels: ops, email