[lug] Randomize Alias mapping with postfix

[Ben]

Seems like it would be a common question, but I can't find anything on 
the net. Can I randomize who postfix forwards an alias to? Specifically 
I'd like support at asdfasf.com to randomly choose one of X support 
engineers. A round-robin really, but not for load-balancing.

I could cron a job that changes the /etc/aliases file, but I'm thinking 
there is probably a better way. (And maybe a problem with what happens 
if an e-mail comes in while I'm updating the alias database).

Thanks,

Ben