What are the solid methods to solve Outlook Send Receive Error?

While working on Microsoft outlook account, I am not able to send or receive emails through my MS outlook. When I apply an appropriate command to send or receive emails through my outlook account, I am seriously experiencing outlook send receive error. This technical situation is very hard and challenging, so I am not able to complete my tasks. It is making me more annoying, so it is creating more troubles for me. Really, it is a big technical blunder for me.