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Avaya Modular Messaging Concepts and Planning Guide
B-8 November 2004
Avaya Modular Messaging Concepts and
Planning Guide
host.domain portion with a fixed string like "company.com", then
replies to these messages will be redirected to an incorrect
address. Many companies use "first.last@company.com" as the
e-mail address for a user's Exchange or IBM Lotus Notes
mailbox. These addresses have the same "first.last@" part, so if
the host.domain portion of a message sent from a user's Modular
Message mailbox is replaced any replies will end up in the user's
regular e-mail mailbox. Customers need to make sure messages
sent between Modular Messaging systems are not sent through
such e-mail gateways, or that the gateway's processing rules
allow messages sent between Modular Messaging systems to
retain their original (unmodified) "from:" address.
! The Notify Me feature allows notification messages to be sent to
any e-mail address, including addresses outside of the customer's
network. Such messages must generally be sent via an outbound
e-mail gateway in the customer's network, and consideration
should be given to what the "from:" address indicates in this case.
The "from:" address when sent by the Modular Messaging system
identifies the subscriber’s Modular Messaging mailbox. Many
companies' outbound e-mail gateways are configured to replace
the host.domain portion of "from:" addresses with a fixed string
like "company.com". This runs into the same issue of confusing
users' Modular Messaging and regular e-mail addresses as
described above, although if the Modular Messaging and e-mail
addresses are coordinated this may be precisely what is desired.
Another option is to change the gateway processing rules to
modify "from:" addresses for messages sent from Modular
Messaging systems into a non-replyable form, such as "do_not_
reply@company.com". With this approach, users would not
receive indication of problems with their notification messages.
Yet another option is to change the gateway to modify "from:"
addresses for messages sent from Modular Messaging systems
into an administrative mailbox, for example
"postmaster@company.com". With this approach, failures related
to notification messages would be delivered to the company's
e-mail postmaster.
! When deploying a Modular Messaging—MSS system, the
customer needs to choose whether the e-mail address for
subscribers' mailboxes (used for networking and when sending
messages using desktop clients) specifies the actual host.domain
of the MSS or is an "e-mail host alias". The default is to use the
actual host.domain name of the MSS. If an e-mail host alias is
used, this name must be added to the customer's DNS servers or
remote systems' /etc/hosts files for messages to be able to be
delivered between systems or from users' desktop clients.
Multiple Modular Messaging systems within a single customer's
network cannot share identical e-mail host aliases.