[quote user="Geoffrey"] I haven't used any yet, but it seems like your point number one would be better met by using the Identities feature of Pegasus[/quote]
Nope. Identities share the same mail store, user mail stores are independent.
[quote user="Geoffrey"] I'm curious how Pegasus knows about each users email address.[/quote]
The
user management function maintains a user list in a file named pmail.usr which resides in the root mailbox directory. There is also a file named pmail.cfg which is created during multi-user install and modified with the pconfig32.exe utility. It contains the path to the root mailbox directory and information about a gateway if one is in use (eg: Mercury).
[quote user="Geoffrey"] Logged-in users [F4] does not seem to work for me.[/quote]
It won't. It's a remnant of Netware functionality.
[quote user="Geoffrey"] It appears that addressbooks cannot be shared...[/quote]
They can. See the System-wide addressbooks topic on pg 101 of the manual.
FWIW, I ran for years with just a shared install of Pegasus Mail but at some
point, keeping the crap out of user mailboxes became important, so I added Mercury to the LAN. It ranks up there as one of the best things I've ever done. I think I was at 10 users when I did it. I maintain domain hosted user
mailboxes from which Mercury POPs messages. AV and SPAM
control are integrated into Mercury allowing for detections to be filtered so as not to be delivered to the user mailboxes. This is something to keep in the back of your head for consideration sometime down the road.