[fix] Increased fault-tolerance of the daemon, crashing only after the same error occurs 5 times in a row (20m)
[improvement] Logged the recipient of each email (5m)
[skip] Wrapped Mail::Message in ImapMessage in the EmailRelayerTest for consistency of test output (1m)
[skip] Increased information in logs (2m)
[improvement] Logged API calls made by recipient resolver (2m)
[skip] Made daemon management log statements magenta rather than blue (4m)

Now, this color scheme should apply:
  - blue: relay
  - green: supporting code
  - magenta: start/stop daemon actions
  - yellow: warning
  - red: exception