Sometime back I must have changed the settings for the available authentication mechanisms on my Zimbra installation.
When doing EHLO on SMTP I get a long list of available mechanisms:

Code:
250-AUTH SMB-NTLMv2 SMB-NT SMB-LAN-MANAGER MS-CHAPv2 PLAIN OTP NTLM LOGIN GSSAPI DIGEST-MD5 CRAM-MD5 WEBDAV-DIGEST DHX APOP
Actually I really just want to use PLAIN and LOGIN. Can anybody give me a hint where I have to change the configuration to get back to just the two mechanisms mentioned?

Currently I'm running Zimbra 5.0.8

- David.