Hello All, I currently have a working Postfix/Dovecot/Roundcube installation with my users being authenticated via PAM. I would like to have my users authenticated against an Active Directory Server instead. The domain name that my AD provides for Windows logins is dc=example,dc=com but my users email addresses on the postfix servers are example1 doamin. Will this matter with the AD having a different domain name then what the email domain is? Is this possible to complete and does anyone have an good links or instructions on how to complete this? Please note this is my first post and it won't put in the domains correctly as it says they are links.