For those of you updating maildrop there is a hotfix for deliverquota. If you take a look at qmail-send when you update qmail you may see the following:

2012-10-16 11:54:35.073520500 delivery 8: success: /usr/local/bin/deliverquota:_not_found/did_0+0+1/

This is a hotfix for that error:

ln -s /usr/local/bin/maildrop-deliverquota /usr/local/bin/deliverquota

Changes are as follows just to summarize all the changes that have been happening the past few months:

The qmail install has been separated into qmail for 8.x and qmail for 9.x Both of which require a different qmail installation method.
Qmail-scanner 1.x has been replaced with qmail-scanner 2.0 in the freebsd port. The port will eventually include an st patch which I am working on with the port maintainer for qmail-scanner.
Dovecot has replaced Courier-imap. Courier dropped vpopmail support a while back. It will only be a matter of time before the courier port drops it as well.
Roundcube has replaced squirrelmail. Roundcube is more visually appealing than squirrelmail in my opinion. Roundcube does require mysql support.
The webify your qmail install has been removed. Roundcube and dovecot are now part of the freebsd 8.x and 9.x guides.
The remaining guides that were in the webify your qmail install are moved to qmail utilities.

Eventually [1] Autoresponder with --ignore-spam will be part of the qmail installations.

[1] http://freebsdrocks.net/index.php/guides-mainmenu-25/21-qmail-utilities/101-autoresponder-with-ignore-spam

The webify the qmail part of the install has now been obsoleted. Courier has been replaced by dovecot and roundcube has replaced squirrelmail. Both of these walkthroughs have been implemented into the current 8.x and 9.x guides.

Over the past few days I have tested and installed dovecot and roundcube on freebsd 9.x and it works flawlessly. The guide is ready for production. I will be adding qmailadmin to the guide within the next few days.

I just finished getting dovecot 2 and roundcube working for freebsd 9.x. This should also work for freebsd 8.x as well. I should have documentation up once I try doing a few test installs of it.