- Make email authentication optional in transporter config
- Only add auth object if both username and password are provided
- Update initialization to only require SMTP_HOST
- Add logging to show whether auth is enabled
- Update documentation with no-auth configuration examples
- Fix "Unrecognized authentication type" error for open relays
Exchange servers configured as internal relays often don't
require authentication. This fix allows using them by leaving
SMTP_USER and SMTP_PASS empty in the .env file.
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Co-Authored-By: Claude <noreply@anthropic.com>
paul
b4fc144cd3