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InfoMagic Standards 1994 January
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1992-12-23
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Section Five - Use of the Directory
20. Overview
This section describes the uses to which the MHS may put the Directory if it is
present. If the Directory is unavailable to the MHS, how, if at all, the MHS
performs these same tasks is a local matter.
This section covers the following topics:
a) Authentication
b) Name resolution
c) DL expansion
d) Capability assessment
21. Authentication
A functional object may accomplish authentication using information stored in the
Directory.
22. Name Resolution
A functional object may accomplish name resolution using the Directory.
To obtain the O/R address(es) of a user or DL whose Directory name it possesses,
an object presents that name to the Directory and requests from the object's
Directory entry the following attributes:
a) MHS O/R Addresses
b) MHS Preferred Delivery Methods
To do this successfully, the object must first authenticate itself to the
Directory and have access rights to the information requested.
23. DL Expansion
A functional object may accomplish DL expansion using the Directory, first
verifying that the necessary submit permissions exist.
To obtain the members of a DL whose Directory name it possesses, the object
presents that name to the Directory and requests from the object's Directory entry the
following attributes:
a) MHS DL Members
b) MHS DL Submit Permissions
c) MHS Preferred Delivery Methods
To do this successfully, the MTA must first authenticate itself to the Directory
and have access rights to the information requested.
24. Capability Assessment
A functional object may assess the capabilities of a user or MS using the
Directory.
The following Directory attributes represent user capabilities of possible
significance in Message Handling:
a) MHS Deliverable Content Length
b) MHS Deliverable Content Types
c) MHS Deliverable EITs
d) MHS Preferred Delivery Methods
The following Directory attributes represent MS capabilities of possible
significance in Message Handling:
a) MHS Supported Automatic Actions
b) MHS Supported Content Types
c) MHS Supported Optional Attributes
To assess a particular capability of a user or MS whose Directory name it
possesses, the object presents that name to the Directory and requests from the object's
Directory entry the attribute associated with that capability.
To do this successfully, the MTA must first authenticate itself to the Directory
and have access rights to the information requested.