Mail forwarding without '.forward'

[LF]

I would appreciate some advise here.

I was trying to migrate from qmail to cyrus imap (with postfix) when I
encounter this problem. If users request for the auto-forwarding feature
(".forward" supported by postfix), does cyrus imap server support
mail forwarding? I don't wanna use ".forward" feature offered by postfix
because that will mean I have to create system accounts
instead of cyrus-sasl accounts.
 
 Please help.
 
Million thks!