For the last month or so my home computer (mac)  does not allow me to send emails from my outlook.  it gives me the message "An operation on the server timed out.  The server may be down, overloaded, or there may be too much net traffic"  One Ok I believe this to be true but every time??? I think its a bigger problem.    When this happens I try to send test emails from my iphone from the same two account and it works, I than try to log on line to the accounts and send test emails and it also works.  Which leads me to believe it is something with my computer.  I must say I am not a big Mac fan I got my Mac in June and which I had just stayed with PC since I know how to trouble shoot that alot better as I am a child of the 80's and have been PC brain washed.