Automation Workshop Free Edition features a Trigger that can watch an FTP server for various file system events, such as, when new file is uploaded to FTP, when file is changed or deleted. It supports regular FTP, as well as, secure FTPS hardened by SSL or TLS.
FTP Watcher is used to react on file changes on the FTP server. It then launces automated tasks, that can then download the file, send it by email as an attachment, parse file contents with powerful Text processing Actions, and much more.
FTP Watcher can also monitor FTP server, but not only monitoring TCP connection, but also ensuring that files are accessible/readable, that connection is reliable, and file transfers can occur without interruptions.
Automation Workshop provides all the functionality I need, out of the box, at no cost. It's free!—Colin A.