Filezilla FTP client – 421 Sorry, cleartext sessions are not accepted on this server

Sometimes we get a error Message when using the FTP clients: 421 Sorry, cleartext sessions are not accepted on this server.

Problem: This error mean that the FTP provider has secured the access with Transport Layer Security (TLS) or its predecessor, Secure Sockets Layer (SSL).

Solution:

Change the protocol of the host to “ftpes://”

The configuration will be

Host: ftpes://hostname.com
port: 21

4 Replies to “Filezilla FTP client – 421 Sorry, cleartext sessions are not accepted on this server”

  1. Please try with sftp:hostname:port, sometimes the ftpes or sftp will be configured to run in port 22. please check that too.

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