Reference: FTP Connection Options
FTP Proxy User Template
This field is used in one of two ways. For connection types of Internet Proxy Login and Internet Proxy Site, it must contain the value required to log on to the proxy server itself. For a connection type of Internet Proxy Template, this fields acts as a template for building the string that will be sent with the Password command. The field is ignored for all other connection types.
Proxy templates can include the following wild cards:
%U Insert the Address
Book User ID
%P Insert the Address
Book Password
%A Insert the Address Book Server Address
Beyond FTP examines the template, replaces any wildcards with the appropriate address book information, and sends the result to the proxy server as the password. This field may be left blank if the proxy server simply forwards the password to the ftp server. Otherwise provide the template as required by the proxy server. (see FTP Proxy User Template for examples.)