how to import sent files from webmail

I’ve installed eM client, no problem at all, clicked Send/Receive and Inbox was filled with my emails (currently using POP3 webmail with RoundCube client), but no sign of my Sent files in folder Sent. How can I get those files from webmail? Thanks!

I am sorry but I cannot help you. POP3 protocol allows you to synchronize Inbox only.