Compare email encryption, local or object storage, backup transports and connection-test results.
Choose the email provider’s supported encryption#
Use the host, port, encryption mode and credentials supplied by the selected email provider. The settings must match; choosing a familiar port does not test that the server can send mail.
| Choice | When it fits | What it changes |
|---|---|---|
| STARTTLS · commonly port 587 | The provider offers an SMTP submission connection upgraded to TLS. | Select STARTTLS and the provider’s matching port. Confirm the connection and actual delivery through the supported test. |
| SSL/TLS · commonly port 465 | The provider expects TLS from the start of the connection. | Select SSL/TLS and the matching port. It is a different connection mode, not an extra layer to add on top of STARTTLS. |
Keep the active workspace, actual business requirements and current setup summary in view. A guide explains a choice; it does not make that choice for you.