HI DocEman
Dont know if you can check with EK, but try googling the 'Reach' company, otherwise respond to that email, asking what company the are, coz it seems like the stuff a recruitment company would need, and the really might make use of gmail accounts, especially if their own email account crashes due to allot of applicants sending cv's...
but first ask politely, you would just like to know what company it is and why they request your cv, photo's etc...
strange that they did not state it tough...
normally the would go, hi .... we are xyz company doing the preliminary screening for emirates, and would like to request your.....
hope this helps