Hello, I have a system running Postfix. I would like to use it with SSL. It works fine, but I have one problem. At /usr/local/lib/sasl2/smtpd.conf there is a line: mech_list: plain login I think this means that when he sends the mail and logs in the login procedure is not secure. How can I make it secure. I tried mech_list: saslauthd login, but it didn't work out. Do you have a guess how can I make the login procedure secure as well? Nowdays I get this error message: postfix/smtpd[31997]: unable to dlopen /usr/local/lib/sasl2/libkerberos4.so: /usr/local/lib/sasl2/libkerberos4.so: Undefined symbol "des_pcbc_encrypt" Why is this? Thanks...