I'm trying to find a way to create a rule that triggers when a user SENDS a message from another address. Here's what we need to accomplish:
Two users are members of a distribution group. Both have rights to Send As that distribution group. When User A does a "send as" with that from address, we need a copy to go to User B, and vice versa.
So, message comes in to GroupName@xyz.com. Message is delivered to UserA@xyz.com and UserB@xyz.com UserA replies, setting the "From" address as GroupName@xyz.com. We need to make sure a copy of that email gets delivered to UserB as well.
It's a distribution group, so the "send through a specified account" doesn't apply. I thought of assigning mail that comes IN to that group to a category, and then checking for the category on the Send side, but it doesn't appear that category assignment is preserved on the sent message.
Any ideas?