Google Message Archiving Microsoft Exchange Journaling Configuration Guide For Exchange Server 2007 and 2010 - Manual (Page 10)

12 Message Archiving - Microsoft Exchange Server 2007 and 2010 Journaling Configuration Guide
Notes
• For messages sent to internal mailing lists, Exchange Server adds the
expanded list of recipients to the journaled message. However, Exchange
Server cannot expand external mailing lists.
• Due to non-compliance issues, Message Archiving does not support
journaled messages that are addressed to public folders.
• Generally, for messages sent to or received by multiple recipients, one copy
of the message is journaled and archived.
• If you implement the RTM version of Exchange Server, multiple copies of a
single sent message are journaled and archived when:
• The number of addressees exceeds the chipping size. The message is
then bifurcated so that each copy meets the chipping-size requirement,
and each copy is journaled.
• Addressees include individual recipients and a distribution group. A copy
of the message is created for individual recipients, a copy is created for
the distribution group, and each copy is journaled. If either the number of
individual recipients or number of recipients in the distribution group
exceeds the chipping size, additional copies are created as necessary,
and each copy is journaled.
• Addressees include multiple distribution groups with different group-
specific properties. A copy of the message is created for each group, and
each copy is journaled. If number of recipients in a distribution group
exceeds the chipping size, additional copies are created as necessary,
and each copy is journaled.
• Addressees include alternate recipients. The message is then bifurcated
and alternative recipients are included in the second message. Each copy
is journaled.
• Content conversion is required for some recipients. Each copy of the
message is journaled.
• If you implement the Exchange Server 2007 Service Pack 1 Update, then
multiple copies of a sent message are journaled and archived only when:
• The number of addressees exceeds the chipping size.
• A message includes a distribution group as an addressee, and the
message is delivered to a Hub Transport server that doesn’t function as
the expansion server for that distribution group. The message is then
forwarded to the appropriate expansion server. The message is journaled
on each Hub Transport server.
• If you implement Exchange Server 2010 journaling, those journaled
messages are identified within the Postini system as coming from Exchange
2007.