Configuration path
Use explicit STARTTLS on port 587 with the generated username and password, then test one recipient with a small PDF.
- Server: the hostname displayed by smtpify365
- Port: 587
- Connection security: STARTTLS
- Authentication: required, using the generated SMTP username and one-time password
- Envelope sender: the Microsoft 365 mailbox that authorized the connection
Product-specific checks
Complete the application test and then trigger one real workflow to verify that configuration, event rules, and transport all work together.
- Correct the device clock and DNS before diagnosing certificate failures.
- Update old firmware rather than weakening TLS.
- Model and firmware capabilities vary, so confirm the compatibility checklist first.
Support boundary
This guidance documents standard configuration behavior and does not imply vendor endorsement or formal vendor support. Check the product documentation for the interface and version you operate.