backover the SMTP server to use to send emails from an application.
Steps….
- Identify the courier provider — Determine whether the box is hosted by Microsoft 365, Google Workspace, Infomaniak, OVHcloud or another provider.
- View supplier documentation — Remove the SMTP name, port, encryption type and authentication mode.
- Do not confuse MX and SMTP client — The MX server for receiving is not necessarily the SMTP server for submitting.
- Test Connectivity — Then test the port with Test-Net-Glogina.
Commands
Test-NetConnection smtp.exemple.fr -Port 587
Key takeaways
- Port 587 with ▼TLS is commonly used for authenticated submission.
- Some platforms disable the default standard SMTP authentication.