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Modular Messaging features
November 2004
Avaya Modular Messaging Concepts and
Planning Guide
5-29
Communities and sending restrictions
Modular Messaging—Avaya Message Storage Server (MSS) has a feature
called Sending Restrictions. With appropriate administration, this feature
prevents the delivery of messages from certain originators to specific
groups of mailboxes residing within the Modular Messaging system.
Thus, administrators can prevent unwanted enhanced-list usage,
unauthorized broadcast message creation, and undesired messaging, such
as delivery from line employees to senior executives, while also isolating
mailboxes that should not receive inbound traffic (such as the ELA
shadow mailbox).
Use of the sending restrictions feature begins with the planning necessary
to organize the messaging network's mailboxes into communities.
Modular Messaging provides up to 15 communities. It may also be
helpful to think of the communities as classes-of-restriction. Although
these assignments can be changed, Modular Messaging, by default,
employs communities 10 and 11 for enhanced-list mailboxes and the ELA
shadow mailbox, respectively.
The communities must be defined equivalently everywhere within the
messaging network as messaging systems include each mailbox's
community assignment when exchanging directory updates. For
networked messaging systems that do not possess facilities to assign
communities to its subscribers, Modular Messaging has an administration
field, configurable on a per-networked system basis, to allocate a
community number to all of the remote system's mailboxes. Likewise, an
administrator can uniformly assign a community number to all Internet
originators who send e-mail to the Modular Messaging system's
mailboxes.
Once the communities are defined, the administrator should identify
unwanted message transmission paths and configure each Modular
Messaging system with the same sending restrictions matrix. Message
transmission between any two communities may be freely open, restricted
in one direction or the other, or restricted in both directions. Modular
Messaging systems arrive pre-configured to restrict all traffic into the
community in which the ELA shadow mailbox resides.
Community numbers are given to Modular Messaging local subscribers
on a per-subscriber basis. They are independent of class-of-service
assignments. It may be necessary to change the community assignments
for some subscribers or networked systems that have already been
administered to achieve the desired results. Administrators should assign
appropriate community numbers to subscribers or networked machines
that are added in the future. Modular Messaging allows definition of a
default community number. The default community is assigned to a new
local subscriber unless the administrator selects a different value during
the subscriber addition.