nPOPw - once you like it, grab the latest beta, also linked on that site. To remove from the server, just mark for deletion from the server then update to the marked condition. Same for downloading attachments or large messages; mark for download, then update, then save out the attachments from the opened message Edit menu. Lots to know, to fully use nPOPw's many features, but the tutorials on the site are great and lots of forums have extensive threads about it.