Outlook addinn Mailitem.forward more then one recipient returns exception

Question

I'm trying to forward a mail. It works ok when there is only 1 recipient. But if I add more then one recipients, I got an exception that "One or more names are not recognized". I checked smtp addresses , everything is Ok. Then I send a new mail (not a forwarding), these addresses work without any exceptions.

var newItem = mailItem.Forward();    
newItem.Recipients.Add("[email protected];[email protected]");  
newItem.Send(); 

I tryed to use ";" or "," as a separator. There is no difference.

Answer 1

You need to call newItem.Recipients.Add for each recipient:

newItem.Recipients.Add("[email protected]"); 
newItem.Recipients.Add("[email protected]");