In <[log in to unmask]> [log in to unmask] writes: > > The POP protocol has no facility for control (or direct access to) host- > > based "folders". To a POP client, all mail resides in one host-based > > folder, and can only be filed locally (either by downloading messages -by > > setting the don't leave mail on server flag in your client, or with modern > > pop clients that support the UIDL command extension in POP, messages on > > the host can be referred to from folders on the client). > > Quite true, and many POP servers don't support UIDL. UCB's current > "popper" does, the relatively new POP server for OpenMail doesn't (so > I've been told), don't know about 3K's. If your POP client has options > to "leave mail on server" or any type of filtering (download messages > that are < nn Kb in size) it requires UIDL support. Our (3k) Pop Server supports UIDL (we did even before many of the clients did.. :-) ) With the latest releases, all of the POP clients we've tried now support UIDL, though interestingly, Eudora is the only client that supports a facility to change your (host) mailbox's password from the client -- a feature administrators of POP servers really grow to appreciate (3k's POP Server also supports this password server). > > > Is this a limitation of the POP protocol or just of these POP clients? > > > > Yes (as I noted above). IMAP is probably the answer there. It allows you > > to manipulate host-based folders, do searching of your host-based message > > store, and has features that generally make it easier if you switch around > > among PCs accessing your mailbox. > > IMAP is an option. It was also the subject of a recent CERT advisory > for having some security holes. Actually, POP servers were recently highlighted in the CERT advisory (I think we forwarded a copy to the list)... Of course, the alert doesn't include MPE based servers. :-) I believe the bug was another similar to the old sendmail bug where incoming clients could overflow a buffer and cause nasty things to happen on the server. > Another issue I have to deal with is playing "multiple roles" when > reading mail - I need access to several mailboxes. The newer Netscape > Communicator (Netscape 4) allows multiple user profiles on the same > machine. This has saved me a good deal of grief, but doesn't sound like > it's applicable to your particular problem. Eudora Pro supposedly does a nice job of handling multiple profiles also FWIW; though their freeware client doesn't (you have to fake it out with multiple copies of the client in different directories). -Chris Bartram