The worker paces campaign sends, runs mailbox warmup and polls IMAP for replies. Pause it to stop all outbound activity immediately.

Emails and domains here are never contacted, and imports skip them automatically. Addresses that hard bounced or reported a message as spam are added for the whole site automatically and can only be lifted by an admin.

Overrides APP_PASSWORD from your environment once set.

Routes every SMTP send and IMAP read through your proxy, so mailboxes are not all seen from this server's single IP. Each mailbox gets its own sticky session, so its exit IP stays stable — rotating a mailbox's IP on every connection looks like account compromise and triggers provider lockouts.