I got three emails this morning about a job well done. It is a nice feeling to be appreciated. No this is not the first time I got those emails.

I get them on regular basis but I just sit on them and do not do any thing about them that is why I am asking how should I react to them ?

How do I reciprocate the favor of that person who sent that email to my boss and then who in turn complimented me too.
Should I send an email to all three thanking them for their appreciation ?