cyrus IMAP4 v2.1.16 and TLS

[victor]

I try to use tls but I have some problems.
The log error:
Jul  7 15:14:03 mail68 imapd[17167]: accepted connection
Jul  7 15:14:03 mail68 imaps[17168]: executed
Jul  7 15:14:11 mail68 imapd[17167]: imaps TLS negotiation failed: 
dgfp.ambra.ro[80.97.24.235]
Jul  7 15:14:11 mail68 imapd[17167]: Fatal error: tls_start_servertls() 
failed
Jul  7 15:14:11 mail68 cyrus-master[17057]: process 17167 exited, status 75

But when I do telnet everything seems to be OK:
[root at mail68 etc]# telnet 127.0.0.1 143
Trying 127.0.0.1...
Connected to localhost (127.0.0.1).
Escape character is '^]'.
* OK cyrus.ambranet.com Cyrus IMAP4 v2.1.16-Mandrake-RPM-2.1.16-5mdk 
server ready
1 capability
* CAPABILITY IMAP4 IMAP4rev1 ACL QUOTA LITERAL+ MAILBOX-REFERRALS 
NAMESPACE UIDPLUS ID NO_ATOMIC_RENAME UNSELECT CHILDREN MULTIAPPEND SORT 
THREAD=ORDEREDSUBJECT THREAD=REFERENCES IDLE STARTTLS AUTH=NTLM LISTEXT 
LIST-SUBSCRIBED ANNOTATEMORE X-NETSCAPE
1 OK Completed
2 STARTTLS
2 OK Begin TLS negotiation now


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