Keep modified time setting

I have a bunch of files locally with different 'date modified' times, but when I upload them this date modified time is not preserved. I thought that this was possible. I checked the settings on the FTP favorite and made sure the setting under 'Files > Keep Modify Time > Upload' was set to enable. I am connecting via FTP port 21.

Does your server supports this feature? Check the transfer logs (double click the file in the transfer queue) for errors with the MDTM/MFF commands.

Does your server supports this feature? Check the transfer logs (double click the file in the transfer queue) for errors with the MDTM/MFF commands.

[16:29:32] 226 Transfer complete.
[16:29:32] MDTM 20081006200312 UPGRADE.txt
[16:29:32] 550 20081006200312 UPGRADE.txt: No such file or directory
[16:29:32] SITE UTIME UPGRADE.txt 20081006200312 20081006200312 20081006200312 UTC
[16:29:32] 500 'SITE UTIME' not understood
[16:29:32] SITE UTIME 20081006200312 UPGRADE.txt
[16:29:32] 500 'SITE UTIME' not understood
[16:29:32] SIZE UPGRADE.txt


I guess not? I have access to the plesk on the server. Is there something I can do to enable this feature? What is required for those commands to work?

Install a FTP server like www.proftpd.org. Contact your web hosting provider, they can assist you with the installation.