how to set up SASL
=================


1. Enabling SASL authentication in the Postfix SMTP server 
   (Noge: changes on "sudo nano /etc/postfix/main.cf")

    
    a) to enable SASL support in the Postfix SMTP server 
             
            smtpd_sasl_auth_enable = yes


    b) to allow mail relaying by authenticated remote SMTP clients 

             smtpd_recipient_restrictions = 
                permit_mynetworks 
                permit_sasl_authenticated 
                reject_unauth_destination


    c) To report SASL login names in Received: message headers (Postfix version 2.3 and later): 

             smtpd_sasl_authenticated_header = yes


    d) To accommodate older Microsoft SMTP client software that implements
       a non-standard version of the AUTH protocol syntax

             broken_sasl_auth_clients = yes


2. Dovecot SASL configuration for the Postfix SMTP server

     a) On the Postfix side (/etc/postfix/main.cf)  
          
             smtpd_sasl_type = dovecot
             smtpd_sasl_path = private/dovecot-auth

     b) On the Dovecot side (/etc/dovecot/dovecot-postfix.conf)

    auth default {
      mechanisms = plain login
      passdb pam {
      }
      userdb passwd {
      }
      socket listen {
        client {
          path = /var/spool/postfix/private/dovecot-auth
          mode = 0660
          user = postfix
          group = postfix
        }
      }
    }



3. test


   telnet smtp.icc-computer.com smtp

   ehlo smtp.icc-computer.com smtp


   250-...
   250-AUTH PLAIN LOGIN