mupdate with starttls?

Craig White craigwhite at
Fri Mar 10 15:54:20 EST 2006

On Fri, 2006-03-10 at 14:44 -0600, Aleksandar Milivojevic wrote:
> When I do "telnet mupdate-host 3905", I see that mupdate lists STARTTLS 
> capability.  However, when frontends and backends are connecting to it, 
> they just go plaintext.  Same thing with lmtp.  It lists STARTLS 
> capability, however when mail is delivered from frontend to backend 
> over lmtp it just goes plaintext.  On the other hand, proxied client 
> IMAP connections are encrypted.  Is there a way to force Cyrus IMAPD to 
> use TLS for all communication between frontends and backends?
> All frontends and backends have certificates signed by CA and 
> referenced from imapd.conf file:
> tls_cert_file: /etc/certs/hostname-imap.crt
> tls_key_file: /etc/certs/hostname-imap.key
> tls_ca_file: /etc/certs/cacert.pem
I remember someone going through that a few months back and posting
their resolution to the might want to search the archives


More information about the Info-cyrus mailing list