KMail 1.8 and SMTP Authentication

Hi,

I am facing a little trouble with KMail 1.8 and a qmail server.
This server is in my LAN, built on slackware 10.0 by following qmailrocks 
(www.qmailrocks.org) help for slackware.

This server is set to accept messages that can go outside the LAN by checking 
password through the SMTP service.
With previous kmail, everything was working properly, now SASL is giving me 
errors that I cannot understand.

If I try to telnet port 25 of this server, I get this message

250-AUTH=LOGIN CRAM-MD5 PLAIN

Now I have tried any parameter combination in kmail for SMTP authentication, 
but SASL keeps giving me a -4 'no mechs found' error.

I temporarily solved the issue by adding my IP address to the 'relayclient' 
setting of qmail smtp, ut how can I track down and solve the problem?

Thanks for any advice

-- 
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