How to check your secure connection

In order to check your mail server connectivity over SSL/TLS, the online checkers listed below can be used.

You need to specify the server hostname and port number or an existing email account and run the test.

SSL-Tools: https://ssl-tools.net/mailservers

CheckTLS: https://www.checktls.com/index.html

MXToolbox: https://mxtoolbox.com/diagnostic.aspx

High-Tech Bridge: https://www.htbridge.com/ssl