Sending alerts to a group - My solution

- In Active Directory create a user called "LISTA-Notifs", give him
an Exchange mailbox.

- Next, in Active Directory create a distribution list called "LISTA-
Distribution" (Mail enabled group)
- Next, on the "LISTA-Notifs" user object in AD, under Exchange
General->Delivery Options and set a "Forwarding address" to forward
all messages sent to this user (LISTA-Notifs) to the distribution
list "LISTA-Distribution"

- Next, add all the 'real' user accounts to the LISTA-Distribution
list.
- In sharepoint, when you configure your alert, just configure it to
send to the "LISTA-Notifs" user.

essentially, what this will do is just use a user object to send all
the alerts to, but that user object is configured to forward to
another email account which is your distribution list.