530, 532, 533, 534, 535 FTP Response Codes

Syntax error, command unrecognized, and the requested action did not take place. This may include errors such as command line too long.

530 FTP Response code

A 530 response code can be sent in response to any command that requires a user to log in before the command is processed. It is a permanent negative response, which means the client is discouraged from sending the command again before logging in since the server will respond with the same response code.

Example response

530 Not logged in.

532 FTP Response code

A 532 response code may be sent in response to any command involving the storage or manipulation of files on the server. It is a permanent negative response, which means the client is discouraged from sending the command again since the server will respond with the same response code. Providing account information first and sending the command again can result in a different response code.

Example response

532 Need account for storing files.

Possible commands:

533 FTP Response code

A 533 response code may be sent in response to a command requesting a change in the command channel protection level that cannot be processed due to the security policy in place on the server. It is a permanent negative response, which means the client is discouraged from sending the command again since the server will respond with the same response code.

Example response

533 Command protection level denied for policy reasons.

Possible commands:

534 FTP Response code

A 534 response code can be issued in response to any command that the server is unwilling to process due to its security policy. It is a permanent negative response, which means the client is discouraged from sending the command again since the server will respond with the same response code. It usually means that the server requires a certain level of security to exist on the connection before processing the command or that it is unwilling to process a command that would provide for decreased security.

Example response

534 Request denied for policy reasons.

Possible commands:

535 FTP Response code

A 535 response code may be sent in response to any command involving file transfer if any data protection services fail at any time at the server end (including an attempt to send a buffer size greater than the negotiated amount).

Example response

535 Failed security check.

Possible commands:

Serv-U Managed File Transfer Server

Starts at

Supports unlimited concurrent sessions

Email Link To TrialFully functional for 14 days

Let’s talk it over.

Contact our team. Anytime.