A few individuals have the right to change the from field within their email when sending out messages.
This works fine for a regular email with an alternate "From" when sending to a straight single email address.
However, when the to field includes a group / distribution list, hte message does not leave the "outbox".
The environment consists of Outlook 2010 client within Office 365 (Exchange online plan E1.
Does anyone have any idea as to how to resolve this problem?