addressing and closing very formal letter

[Unregistered]

Please send me how to adress and close the above to email gmjaya@qatar.net.qa or please tell me if I address as "sir" and close as "i remain sir,whether its correct.

 

[Anglika]

Dear Sir,

Yours faithfully,



"I remain, sir, your very faithful servant" is now totally out of date and unusable.