Use Auto TLS option needs to be moved and renamed to STARTTLS protocol

[shoulders]

FluentSMTP: 2.2.8
WordPress: 6.5.5

Background

When setting up Other SMTP you are presented with your configuration page for the settings including those shown below.

The issue

The Encryption options are none, SSL and TLS but there is not STARTTLS in this list, but for some confusing reason this has its own option Use Auto TLS.

STARTTLS when used, the email handshake tries to use encryption starting with the most secure protocol available and then moves down the list (i.e. TLS 1.3 --> TLS 1.2 --> TLS 1.1) and if all of these fail the connection will drop to an insecure connection (unless specified by server not to). This does not require userland settings to tell it to use SSL or TLS.

Proposed solution

• Add STARTTLS option to the Encryption list as this is a much more logical location because STARTTLS is a protocol.
• Remove the Use Auto TLS section as this is confusion and would no longer be required
• You could add descriptions of the none, SSL TLS, STARTLS where the Use Auto TLS option was if you need to keep ease of use and clarity for users.