==== Required information ====
- iRedMail version (check /etc/iredmail-release):
- Linux/BSD distribution name and version:
- Store mail accounts in which backend (LDAP/MySQL/PGSQL):
- Web server (Apache or Nginx):
- Manage mail accounts with iRedAdmin-Pro?
- Related log if you're reporting an issue:
======== Required information ====
- iRedMail version (check /etc/iredmail-release): 0.9.0
- Linux/BSD distribution name and version: Ubuntu 14.04 LTS
- Store mail accounts in which backend (LDAP/MySQL/PGSQL): LDAP
- Web server (Apache or Nginx): Apache
- Manage mail accounts with iRedAdmin-Pro? No
- Related log if you're reporting an issue:
====

I'm using iRedMails-LDAP as authentication service for mediawiki. It is working well but I can't use the encryption (TLS or SSL). Because the handshake failes.

gnutls-cli localhost -p 389

gives me:

Resolving 'localhost'...
Connecting to '127.0.0.1:389'...
*** Fatal error: A TLS packet with unexpected length was received.
*** Handshake has failed
GnuTLS error: A TLS packet with unexpected length was received.

openssl s_client -connect localhost:389 -showcerts

gives me:

CONNECTED(00000003)
139799254488736:error:140790E5:SSL routines:SSL23_WRITE:ssl handshake failure:s23_lib.c:177:
---
no peer certificate available
---
No client certificate CA names sent
---
SSL handshake has read 0 bytes and written 295 bytes
---
New, (NONE), Cipher is (NONE)
Secure Renegotiation IS NOT supported
Compression: NONE
Expansion: NONE
---

What am I doing wrong?