AppleShare IP 6.3: Users Cannot Connect To The Mail Server
This article provides troubleshooting information for AppleShare IP 6.3.
Make sure the mail server is running. See Starting and stopping the mail server.
Make sure the users' e-mail applications are properly configured for your network.
Try allocating more memory to the mail server.
If users are connecting to the mail server over TCP, check the connection between the user's computer and the server using a utility that allows you to "ping" the computer. (If users are connecting over AppleTalk, make sure they can see the mail server in the Chooser.) You can find out more about ping and other tools as well as troubleshooting here.
Check the Mail Server Activity window. If the number of active users and the number of users sending mail is always high, too many users may be trying to connect at the same time.
If other services are running on the same computer as the mail server, the server may be too busy. Consider adding more RAM to the computer or moving the mail server to another computer.
If you are sharing users and groups and have set up a user's mail account on a secondary server (by typing that server's DNS name in the Mail Account Location text box), make sure you've set up the secondary server properly. Then make sure the user's e-mail application is configured to log on to the correct server.
Make sure you haven't blocked access to the mail server's ports for these users using TCP Filter Admin.