Is 'Reverse Path Filter' still an option?

[EstherC]

I have an alias that has been compromised, but I use it for more than
one source, so I'd like to salvage it if possible. I thought I could
set up a reverse path filter that would allow me to set up a word or
phrase that they would need to have in their from address to make it
through; however I don't see the option anymore when I go to edit that
alias. Am I missing it, or was it removed?

[supp...@e4ward.com]

It was removed, but it's back now.