Postfix main.cf

I have two ISPConfig server running Debian 4, both with perfect install.
On one server I find this in /etc/postfix/main.cf:
mailbox_command = procmail -a $EXTENSION

Why is this there? Should I remove this or add it on the other server?

On the other server there's this line:
home_mailbox = Maildir/

After adding this line on the first server Webmin shows the correct mailbox size, which is good for me. But why is there a difference?

thanks.

 

I guess you used these (optional) commands from chapter 12 on http://www.howtoforge.com/perfect_setup_debian_etch_p5 on the second server, but not on the first one:

Code:

postconf -e 'home_mailbox = Maildir/'
postconf -e 'mailbox_command ='
/etc/init.d/postfix restart

 

Indeed. Now I remember again. Thanks.