An eMule server (also called an eDonkey server ) is a central directory, not a file storage . It doesn't hold files—it holds metadata about users who are sharing files.
http://upd.emule-security.org/server.met Or from: emule servidores
https://groups.friendsofemule.org/serverlist/server.met Open eMule → Servers → Right-click → New server → Enter: An eMule server (also called an eDonkey server