Make cyradm use plain+tls

[Perry Brown]

>From a thread last month some fine folks on this listed suggested I set up 
tls for plain so that I could do an xfer of mailboxes from one host to 
another.

I got that set up and I am able to do an imtest from one host to the other 
one and it gets authenticated with plain+tls.

My problem now happens when going back to cyradm to do the xfer. When I log 
into the source host I'm authenticated with plain and when I run the xfer 
command it tries to connnect to the destination server as plain.

How can I force cyradm to connect with plain+tls? Or possibly some work 
around using Cyrus::IMAP::Shell

I looked at just about every news group and website and a couple of them 
mentioned it's not possible to force tls in cyradm but the date on those 
sites where from a few years ago and my hope is something has changed in the 
interum.

Here is imapd.conf:
defaultpartition: imap1
configdirectory: /var/imap
partition-imap1: /var/spool/imap1
admins: cyrus support
srvtab: /var/imap/srvtab
quotawarn: 85
popminpoll: 0
autocreatequota: 30000
sasl_pwcheck_method: saslauthd
lmtp_over_quota_perm_failure: 1
allowusermoves: yes
proxy_authname: cyrus
proxy_password: password
force_sasl_client_mech: plain login
tls_cert_file: /local/imap/server1.sub1.domain.com.pem
tls_key_file: /local/imap/server1.sub1.domain.com.pem

Thank you
Perry