Take a look at the following thread:
http://asg.web.cmu.edu/archive/message.php?mailbox=archive.info-cyrus&searchterm=delivering%20to%20bb%20folders&msg=21384
Also this web page might give you more ideas about posting control and
BB folders
http://email.uoa.gr
Nikos Voutsinas
Mohamed Magdi Abb
I've configured both sendmail and cyrus to do both SMTP AUTH and LMTP
AUTH respectively. Delivery is done via LMTP TCP. The one thing not
working is the passing of the auth credentials from sendmail to lmtp.
I.e if I have a shared folder with a post acl assigned to user jsmith,
and jsmith sends