exim & cyrus imap problems

[Lance_Hoffmeyer@augustmail.com]

I am having problems getting exim to work with cyrus imapd.
In exim.conf:

local_delivery:
     driver = pipe
     command = "/usr/sbin/cyrdeliver ${local_part}"
     return_path_add
     return_output
     prefix = ""
     user = cyrus

In imapd.conf

defaultpartition: default
partition-default: /home/imap/mail

If I login as root then

su - lance
password

echo *Subject: Test | /usr/sbin/exim -v lance

** lance@augustmail.com T=local_delivery defer (13): Permission denied: 
failed to chdir to /home/lance


Cyrus appears to be working fine.  I can create and delete accounts.  I
can telnet in ...


Why is Exim trying to change to /home/lance instead /home/imap/mail/user/lance ?

Any ideas on my configuration error?

Lance