Connection via FTPS fails with one of the following errors (depends on FTP client):

Insecure server, it does not support FTP over TLS.


534 Policy denies SSL


Local policy on server does not allow TLS secure connections

Log in to Plesk.

Go to Tools & Settings > Security Policy.

Set the Allow both secure FTPS and non-secure FTP connections option and press the Apply button.

Set the Allow only secure FTPS connections option back and press the OK button.

By anup

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