I'm trying to work out how I can get postfix to accept email for any sub-domain of my main site. I don't have virtual domains, just a long list of sub-domains for local delivery. In specific, I'm feeding python@*.mydomain.com into a Python using the alias file:

python:    |/www/proc_email.py

The Python can handle delivery from there. I envision this looking something along the lines of:

mydestination = encendio, localhost.localdomain, localhost, *.mydomain.com

I'm running the latest version of postfix on Ubuntu (not rightly sure how to check the version).

Thanks in advance.