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SMTP & AWS SES Hybrid Routing Configuration

Guide for the Hybrid Mail Delivery module.

Gig Central's Hybrid Mail Routing handles outbound delivery using a combination of personal SMTP integration and verified system mail gateways (AWS SES/Resend).

This guide walks you through email configuration and deliverability best practices.


1. Understanding Delivery Options

The system routes different email types using target delivery options:

  • Outreach & Sales (Personal SMTP): Cold campaigns and manual pitches route through your connected inbox (Google Workspace or Outlook). This makes emails look like personal correspondence, maximizing open rates.
  • System Notifications & Billing (AWS SES): Welcome alerts, portal invitations, and Stripe invoices route through verified AWS SES domains to ensure delivery.

2. Setting Up Personal Mail Integrations

  1. Go to Settings > Integrations > Email Accounts.
  2. Enter SMTP server configurations, port numbers, and login details.
  3. Run the Test SMTP Connection check.
  4. Credentials are encrypted prior to database storage. See IMAP Security for details.

3. How It Works (Behind the Scenes)

  • Mail Dispatcher Routing: The dispatch worker evaluates outgoing email queues. If a personal SMTP server is connected, it routes outreach pitches through that account. If the connection fails, it routes through system SMTP fallbacks.
  • Queue Retries: Outbound errors trigger automated retry queues managed in the Email Queue Processor.

4. Maximizing Deliverability

  • Authenticate Custom Domains: Complete DKIM and SPF checks detailed in DNS Verification.
  • Monitor Bounce Rates: Periodically review outbox logs to catch and clean up bouncing addresses.

Ready to verify mail routes?

Go to Email Settings →