If the STARTTLS encryption for the outgoing server is not working or unavailable for any reason, you can use the following encryption: Encryption: SSL/TLS Port: 465 For your information, setting up ...

While sending an email through the Outlook desktop app, if you see an error message saying Microsoft Outlook cannot sign or encrypt this message because there are no ...

There is no fix available, but you can always revert to an older version.