Clearing up confusion with TLS and SSL in Email Library #3430
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Description
fixes #3429
Making sure connection for email submissions to port 465 is always using implicit TLS as per RFC8314.
Updating docs to describe the differences between port 465 and 587 and why/when STARTTLS is required and the setting
$SMTPCrypto
.Current implementation only enables TLSv1.0 for the upgrade after STARTTLS, this PR enables versions 1.0, 1.1 and 1.2.
Checklist: