Set up per user sieve rules

Hello!

I am struggling to wrap my mind around how to set up sieve rules for my individual users on my mail server.

I set up a global sieve script file at "/var/lib/dovecot/sieve/default.sieve” and that works great.

My users maildirs are located at /mnt/volume1/mailserver/maildir/user. Do I need to create a sieve script file inside of that folder for sieve scripts to work on an individual basis? If so, what permissions will that script file need?

Thanks in advance for your help!

Austin Witmer