I tried Airmail for a few days, then went back to Mail. The biggest problem was that I could not figure out how to use operators such as "from:" and "to:" when

I tried Airmail for a few days, then went back to Mail. The biggest problem was that I could not figure out how to use operators such as "from:" and "to:" when searching. The other problems included strange behavior in the composer, and an overall lack of polish.