I have a distribution list (firstname.lastname@example.org email address) with several users as members. I can send to this email externally and the users all get a copy of the email .... great.
However I want those emails to have a subject prefix of 'sales query'. Looking at the transport rules wizard, I can see the nearest option is 'when sent to members of a dist group'. This is not what I want as it will prefix the subject of ANY email sent to these people - I only want it to happen when the email was speifically address to email@example.com.
I'm guessing this can get done in powershell, but I don't have the time right now to research it nor do I see an obvious solution.