I have 3 accounts in Microsoft Outlook. I'm not sure if this happens with all of them it may just happen with my default account because that is only where I have seen it at the moment.
I believe this happens when I reply to another e-mail from somebody else (as opposed to starting a new one and then sending that). I also believe that this doesn't happen all the time, only sometimes which makes it all the more strange.
When I have replied to an e-mail and then checked in my sent items folder in the same account, it is showing that message in duplicate (as sent twice). I have looked up many answers to this problem (and there are many) but I am asking what would be the most likely cause of this?
I have a Windows live mail account with the same address in Outlook i.e. Soandso@live.co.uk. I don't know if this gives you any extra added help for the question but it may.
Any ideas will be most appreciated