I think the point of the original poster was that you don’t need to use procmail to do the filtering. Use email aliases/forwarding in the panel instead.
- For your public address, set up a forward to gmail.
- In gmail, turn on the setting that forwards all mail back to another dreamhost alias.
- Set that dreamhost alias to dump the filtered mail in whatever real mailbox you want to read it from.
That works great. I use this process on several family accounts with no problem, and no procmail work is needed. (Although I do use procmail for other things.)