we have our head office located in a different place. it is connected through vpn and one of the user based in HO is having email account of HO domain. Now he is shifting to our office and we have a diff email domain account. since both ends are connceted via vpn he can download outlook emails in his laptop when he comes here. but it is extremely slow (connection speed is 1mbps). again the user doesnt want to forward his email to our email account domain because when he send any email it will display our email account instead of his HO account. Is there any solution to this issue. normally when he opens outlook it is taking longer toime to download emails and even sending also.