Yes, that's what I did when I was writing my email app (just learning, with Pike/GTK :). I think that is how the other clients do it also.

Without a module, it would connect, list messages, and foreach message, do a top [id] 0 (to just get the headers), then parse out the Message-ID: field. I then kept a list (in Pike, a multiset was easiest) of all msgid's I've seen already, and only download a message (retr) that I hadn't seen.

Of course, the module would do most of the for you. You would just have to keep a list of the msgid's.

The previous message said the same thing, I realize, but I wanted to reiterate/confirm it.

Anyway...

riffraff