outlook add-in 2010 how do I know that the user presses Reply button?

Question

I'm developing an outlook 2010 add-in in c#/.net. I have some items that I need to export to a specific location from inbox let's say. But in the same time when the user replies to this mail item (that was previous exported - I change the MessageClass when export it), I need to export the reply too when the user sends the reply. I catch the new inspector event and set the send event to my item, but I cannot figure out how can I be sure that the user presses Reply and not Forward for example?! I cannot find any property in the inspector that can tell me for sure that the Reply button was pressed.

Do you have any ideas?!

Thanks

Answer 1

There are a couple of ways to achieve this. Assuming you already checked if it was a new message or sent message (via MailItem.Sent), you can just check whether there are any recipients specified (via MailItem.To or MailItem.Recipients) to know whether the message is a Forward or Reply.

bool isReply = !string.IsNullOrEmpty(MailItem.To) || MailItem.Recipients.Count > 0 ;