Disabling email for older accounts

[VodkaFish]

Is there any easy way (outside of a sql statement, which is what I assume I'm going to need here) to disable old accounts from receiving emails? Most people who receive the birthday email seem to like it, but those who haven't logged in in years, the chances of a bounce are high, and I'd like to avoid those.

I'm thinking I can write a sql statement setting receive admin emails to no on activity date before 'x', but before I did, I wanted to know if there was some control panel way to do it.