mtaをsendmailからpostfixに切り替える

# ls -l /etc/alternatives/|grep mta
lrwxrwxrwx 1 root root 27  2月 20 10:45 mta -> /usr/sbin/sendmail.sendmail
lrwxrwxrwx 1 root root 41  2月 20 10:45 mta-aliasesman -> /usr/share/man/man5/aliases.sendmail.5.gz
lrwxrwxrwx 1 root root 23  2月 20 10:45 mta-mailq -> /usr/bin/mailq.sendmail
lrwxrwxrwx 1 root root 39  2月 20 10:45 mta-mailqman -> /usr/share/man/man1/mailq.sendmail.1.gz
lrwxrwxrwx 1 root root 28  2月 20 10:45 mta-newaliases -> /usr/bin/newaliases.sendmail
lrwxrwxrwx 1 root root 44  2月 20 10:45 mta-newaliasesman -> /usr/share/man/man1/newaliases.sendmail.1.gz
lrwxrwxrwx 1 root root 24  2月 20 10:45 mta-pam -> /etc/pam.d/smtp.sendmail
lrwxrwxrwx 1 root root 23  2月 20 10:45 mta-rmail -> /usr/bin/rmail.sendmail
lrwxrwxrwx 1 root root 26  2月 20 10:45 mta-sendmail -> /usr/lib/sendmail.sendmail
lrwxrwxrwx 1 root root 42  2月 20 10:45 mta-sendmailman -> /usr/share/man/man8/sendmail.sendmail.8.gz

# /usr/sbin/alternatives --set mta /usr/sbin/sendmail.postfix

# ls -l /etc/alternatives/|grep mta
lrwxrwxrwx 1 root root 26  2月 23 06:15 mta -> /usr/sbin/sendmail.postfix
lrwxrwxrwx 1 root root 40  2月 23 06:15 mta-aliasesman -> /usr/share/man/man5/aliases.postfix.5.gz
lrwxrwxrwx 1 root root 22  2月 23 06:15 mta-mailq -> /usr/bin/mailq.postfix
lrwxrwxrwx 1 root root 38  2月 23 06:15 mta-mailqman -> /usr/share/man/man1/mailq.postfix.1.gz
lrwxrwxrwx 1 root root 27  2月 23 06:15 mta-newaliases -> /usr/bin/newaliases.postfix
lrwxrwxrwx 1 root root 43  2月 23 06:15 mta-newaliasesman -> /usr/share/man/man1/newaliases.postfix.1.gz
lrwxrwxrwx 1 root root 23  2月 23 06:15 mta-pam -> /etc/pam.d/smtp.postfix
lrwxrwxrwx 1 root root 22  2月 23 06:15 mta-rmail -> /usr/bin/rmail.postfix
lrwxrwxrwx 1 root root 25  2月 23 06:15 mta-sendmail -> /usr/lib/sendmail.postfix
lrwxrwxrwx 1 root root 41  2月 23 06:15 mta-sendmailman -> /usr/share/man/man1/sendmail.postfix.1.gz