Forum Discussion
Mail flow conditions for O365 Groups
Scenario = Support center:
100 customers with know email addresses
Support Group with 3 Technicians (O365 Group)
100 customers are divided into 3 Support technicians
Problem:
...
One thing to try is to make sure the "match sender address" option is set to both header and envelope. You can also change the first condition to "recipient is" and point to the Group object. And also, set any severity level on the rule(s), so you can actually track them later and see whether they did take any actions.
It doesn't look like a mail rule will address all your complaints for this scenario however, perhaps you should consider using a good old shared mailbox instead.