It does not at present. It *can* handle E-Mailed Links. You need to have a Linux E-Mail account *on the same machine (server)* as the web/database server. A Tcl script (which I guess could be ported to Perl, etc.) is included (you need Tcl and mysqltcl installed on the server). This script can be run from a Procmail recipe -- I in fact do this with my company web site (I have my own virtual server that is also my mail server).
The main problem with doing this with FTP subscriptions is a matter of timing -- there isn't a good way for WordPress to know when the subscription data was uploaded.
Of course the *best* option would be a HTTP POST delivery of the link data. (There are all sorts of security issues with this option though.)