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Solved: insecure FTP data connection (TLS session resumption)

If you are running any version of Server! prior to 5.1.17, and using the FTPS or FTPES protocol, your client software may start complaining about an "insecure data connection" or lack of "TLS session resumption".

You may see an error message similar to the one here below:


There's an easy solution to that: upgrade to the most recent version of Syncplify Server!

Thank you!