Self signed certificate

[Helga Mayer]

Hello,

I'm sure this has been discussed before, but I did not find a suitable
answer.
I'm running Kolab Server 2.2 Release Candidate 2

I've a self signed certificate for testing.
When I use 'openssl s_client -connect mailbox1.rz.uni-hohenheim.de:993'
I get:
CONNECTED(00000003)
depth=0 /C=de/ST=Baden-Wuerttemberg/L=Stuttgart/O=University of 
Hohenheim/OU=Computing 
Center/CN=mailbox1.rz.uni-hohenheim.de/emailAddress=rz-mail at uni-hohenheim.de
verify error:num=18:self signed certificate
verify return:1
depth=0 /C=de/ST=Baden-Wuerttemberg/L=Stuttgart/O=University of 
Hohenheim/OU=Computing 
Center/CN=mailbox1.rz.uni-hohenheim.de/emailAddress=rz-mail at uni-hohenheim.de
verify return:1
---
Certificate chain
  0 s:/C=de/ST=Baden-Wuerttemberg/L=Stuttgart/O=University of 
Hohenheim/OU=Computing 
Center/CN=mailbox1.rz.uni-hohenheim.de/emailAddress=rz-mail at uni-hohenheim.de 
i:/C=de/ST=Baden-Wuerttemberg/L=Stuttgart/O=University of 
Hohenheim/OU=Computing 
Center/CN=mailbox1.rz.uni-hohenheim.de/emailAddress=rz-mail at uni-hohenheim.de---
Server certificate
-----BEGIN CERTIFICATE-----
.......
-----END CERTIFICATE-----
subject=/C=de/ST=Baden-Wuerttemberg/L=Stuttgart/O=University of 
Hohenheim/OU=Computing 
Center/CN=mailbox1.rz.uni-hohenheim.de/emailAddress=rz-mail at uni-hohenheim.de
issuer=/C=de/ST=Baden-Wuerttemberg/L=Stuttgart/O=University of 
Hohenheim/OU=Computing 
Center/CN=mailbox1.rz.uni-hohenheim.de/emailAddress=rz-mail at uni-hohenheim.de
---
No client certificate CA names sent
---
SSL handshake has read 1669 bytes and written 331 bytes
---
New, TLSv1/SSLv3, Cipher is DHE-RSA-AES256-SHA
Server public key is 1024 bit
Compression: NONE
Expansion: NONE
SSL-Session:
     Protocol  : TLSv1
     Cipher    : DHE-RSA-AES256-SHA
     Session-ID: 
DB9D792764710EDCCA9D4712B0562B4C1F5ED4CC690DF9E5C4FCBE2D8AF0765F 
Session-ID-ctx:
     Master-Key: 
FEB49D01EEFACF4F361A399291FB45C31A8D2C6D93D6CD68C4E08696ED562A9344DA32AC3F058EA88C3CBA5D163C8534
     Key-Arg   : None
     Krb5 Principal: None
     Start Time: 1211900892
     Timeout   : 300 (sec)
     Verify return code: 18 (self signed certificate)
---
* OK [CAPABILITY IMAP4 IMAP4rev1 LITERAL+ ID AUTH=PLAIN SASL-IR] 
mailbox1.rz.uni-hohenheim.de Cyrus IMAP4 v2.3.11-openpkg server ready

But when I try to connect to imap
using 'telnet mailbox1.rz.uni-hohenheim.de 993'

I get:
BYE Fatal error: tls_start_servertls() failed

connect to port 143 works.

Any help is appreciated.

Regards
Helga Mayer