Hi,
I reinstalled Office for Mac 2011 after upgrading to Mavericks. After configuration of incoming and outgoing email server I'm not able anymore to send emails. I made exactly the same configuration in my MacBookPro's "MAIL", where I can send emails without any problems. For authentication of outgoing server I confirmed "same information as incoming server". Any idea what could happen?
Many thanks in advance, 

Message could not be sent. The setting for your outgoing email server might need to be configured. Server error 450 Live mail error Ox800CCC79. Everything has been working fine until I accidentally sent out mail with an invalid address, the server roadrunner of course wouldn't accept it of course I had erased my messages from the sent and deleted files so I can not longer see them. Now instead of deleting them, Windows live mail continues to try and send them. This is not a Roadrunner issue, strictly Windows live mail. I'm thinking there is a copy on my computer in the program folder and that I may need to erase it there, but I can't seem to figure out how to open it to the view my mail from there. I am using Windows 7, any ideas? I have several different mail boxes they are all working fine, except the 2 that I have this problem with.