maxage only works for flags?

[Ron]

I've used imapsync with --maxage 2 before and it does exactly as expected. With
offlineimap, all messages are downloaded in spite of maxage being set to 2 days.
I have tons of email in several mailboxes I don't want to download. 

I did notice that if I used rsync first to get all messages, maxage seemed to
prevent flags from getting changed on messages older than maxage. 

What am I doing wrong. 

Also, is offlineimap only designed to be run from the local side? I tried
running it from the remote side but couldn't get it to work no matter how I
changed .offlineimaprc around. 

Thanks

Ron