> Tell them that since you found the job offer interesting (indeed you accepted it) if you ever become available again, you would let them know in case there is

> Tell them that since you found the job offer interesting (indeed you accepted it) if you ever become available again, you would let them know in case there is a matching opportunity. The equivalent of the phrase from the rejection email: "shall any matching opportunities arise in the future we will totally contact you again" :)