> 1) It would not matter which system managed your mail, your email > address would be the same. This is the one that is giving me the most > grief in trying to figure out. How would a message know which system to > go to? The prospect of managing alias tables in sendmail do not appeal > to me at all. IMAP will handle all your mail happily but you probably will end up with some kind of tables. LDAP would be the obvious way to do this. > 2) There would need to be an integrated or shared global address book. > Anybody should be able to find anybody else regardless of email manager. LDAP > 3) Though not a requirement, it would be nice if a person could > "graduate" from "basic" to "advanced" with a minimum of hassle. > > Any thoughts would be greatly appreciated LDAP updates - although moving email between systems if you've left it on the server might not be quite so fun.