We sent out a group event e-mail last night. This morning, I opened my e-mail and found over 30 failure messages.
However, I need to open each failure message individually and then open each attachment to determine the failed e-mail address.
I suggest that you create a single e-mail message that consolidates the success or failure of group/event email blasts. This way administrators can easily correct the mailing list or delegate the task to others.
Furthermore, it would be even better if you could differentiate between "out of office" replies and true failure messages.