10 emails a day, means like, in marketting and sales, you need to be pro active . hahah.
an email can be a one liner like "Hello, i find you interesting, email me back if interested." not a paragraph..
I used to get more than that per day when i first joined, and answering them is more tedious work.and my response was meticulously analyzed down to typo errors and context like i am in beauty pageant.