NFS4, automount and maildir folders

[Stefan Skoglund]

I have a bit problem with this:

I have home folders stored on an Solaris NFS server which is shared with
kerberized nfs4. Every user is in its own separate zfs share.

The automount info is delivered through LDAP.

The users email is stored in Maildir folders in ~ for every user and
with postfix running on Debian wheezy NFS client.

My problem is: i havent figured out yet how to give local(the postfix
maildrop daemon) the necessary Kerberos NFS tickets.

The maildrop works if the user logs inte the mail server himself
(the user acquires the tgt and with that the nfs ticket.)

So my problem is how to create the necessary keytab and ticket cache:s
for local.

OS is Solaris (NexentaStor) and Debian Wheezy.

I have a working configuration of kerberized syslog using kstart from
the mail servers to a backup server (debian too)