How to remove FTP account in Plesk
To remove an additional FTP account, perform the following steps:
1 – Logged in to Plesk.
2 – Go to Websites & Domains.
3 – Click FTP Access.
4 – Select the checkbox corresponding to the FTP account you want to remove and click Remove.
5 – Confirm removal and click OK.
NOTE: that the main FTP account of a subscription cannot be removed.