Apple AppleShare IP 5.0 Update - Manual (Page 27)

m The keyword “ForwardAppleTalk” is required to enable auto forwarding
over AppleTalk for the user. It must be followed by a user name, a tab
character, a server name, a tab character, and a zone name. The
maximum length for the user name, server name, and zone name is
31 characters each.
Here is an example for each possible combination of e-mail attribute:
NoMail
HasMail NO APOP
HasMail APOP
ForwardInternet [email protected]
ForwardAppleTalk Jan Smith Shasta Excalibur
If a field or subfield does not conform to these requirements, the Import
Users command does not import the user and generates a message in the
log file indicating the reason for the failure.
Appendix E / Import File Format 311