bash-3.2# make install
===> mail/postfix/stable
===>  Installing postfix-2.3.7 from /usr/ports/packages/i386/all/
postfix-2.3.7: complete                                                                                                                                     
--- postfix-2.3.7 -------------------
-> Creating /etc/mailer.conf.postfix
-> Creating Postfix spool directory and chroot area under /var/spool/postfix


+---------------
| The existing configuration files in /etc/postfix has been preserved.
| You may want to compare them to the current sample files,
| /usr/local/share/examples/postfix, and update your configuration as needed.
|
| /etc/postfix/post{fix-{script,files},-install} has been updated.
+---------------

+---------------
| Postfix can be set up to replace sendmail entirely. Please read the
| documentation at file:/usr/local/share/doc/postfix/html/index.html or
| http://www.postfix.org/ carefully before you decide to do this!
|
| To replace sendmail with postfix you have to install a new mailer.conf
| using the following command:
|
|     /usr/local/sbin/postfix-enable
|
| If you want to restore sendmail, this is done using the following command:
|
|     /usr/local/sbin/postfix-disable
+---------------

===> mail/postfix/stable,ldap
===>  Installing postfix-2.3.7-ldap from /usr/ports/packages/i386/all/
Can't install postfix-2.3.7-ldap because of conflicts (postfix-2.3.7)
/usr/sbin/pkg_add: /usr/ports/packages/i386/all/postfix-2.3.7-ldap.tgz:Fatal error
*** Error code 1

Stop in /usr/ports/mail/postfix/stable (line 1400 of /usr/ports/infrastructure/mk/bsd.port.mk).
*** Error code 1

Stop in /usr/ports/mail/postfix (line 108 of /usr/ports/infrastructure/mk/bsd.port.subdir.mk).