Hi so I'm trying to find a list of people that emailed a user when there mail box was full. I found internally using the microsoft exchange trouble shooting assistant message tracking . Setting sender as Microsoft Exchange account and looking for failed messages there were very few. But when the sender is postmaster there are a lot more messages and since I can't actually see the messages I don't know if post master is sending the message because that user's mailbox was full. I know this is a really particular request but I think it would be useful for others as well. I'm wondering if there's a unique failure for mailbox full I can search for. I think as I'm writing this I may have figured it out but now to dump this to txt that the user could use like excel or csv. Basically search I used was recipient and fail. Anyone know how to do this in powershell and export list to a file.