Novell GROUPWISE 7 - DATABASES, Manual

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420 GroupWise 7 Administration Guide
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When ConsoleOne reads a trusted application record that has the Provides Message Retention
Service setting turned on, it adds a
Retention tab to the GroupWise Client Environment Options
( Tools > GroupWise Utilities > Client Options > Environment ).
Figure 33-2
Environment Options Dialog Box with the Retention Tab Open
You use this Retention tab to enable message retention at the domain, post office, or user level,
meaning that you can enable it for all users in a domain, all users in a post office, or individual users.
Turning on message retention alters the GroupWise client purge behavior by preventing a user from
purging any messages from his or her mailbox that have not yet been retained.
33.1.2 What the Message Retention Application Does
Different message retention applications might vary slightly in their approach to retaining messages.
This section provides a general approach to message retention.
To determine whether or not mailbox messages have been retained, the message retention
application adds a time stamp to the mailbox. The message retention application can use the
GroupWise Object API or GroupWise IMAP support to write (and read) the time stamp. In addition,
you can use the
GroupWise Time Stamp Utility (page 448) to manually set the time stamp.
The time stamp represents the most recent date and time that message retention was completed for
the mailbox. Messages delivered after the time stamp cannot be purged until they have been
retained. This requires that the message retention application retain items chronologically, oldest to
newest. For example, assume a mailbox has a message retention time stamp of May 7, 2007
12:00:00. The mailbox has three folders with a total of seven messages: