smtp auth problem

[cebe]

If I let :

$rcmail_config['smtp_auth_type'] = '';

I have :

postfix/smtpd[6180]: warning: localhost.localdomain[127.0.0.1]: SASL DIGEST-MD5 authentication failed: another step is needed in authentication

But if I give PLAIN as value, it's ok. Though :

 SMTP AUTH type (DIGEST-MD5, CRAM-MD5, LOGIN, PLAIN or empty to use best server supported one)

[thomasb]

Looks like DIGEST-MD5 does not work => PEAR Net_SMTP or Auth_SASL issue.