alternatives --remove mta /opt/zimbra/postfix/sbin/sendmail
alternatives --install /usr/sbin/sendmail mta /opt/zimbra/common/sbin/sendmail 25 \
       --slave /usr/bin/mailq mta-mailq /opt/zimbra/common/sbin/mailq \
       --slave /usr/bin/newaliases mta-newaliases /opt/zimbra/common/sbin/newaliases \
       --slave /usr/share/man/man1/mailq.1.gz mta-mailqman /opt/zimbra/common/share/man/man1/mailq.1 \
       --slave /usr/share/man/man1/newaliases.1.gz mta-newaliasesman /opt/zimbra/common/share/man/man1/newaliases.1 \
       --slave /usr/share/man/man8/sendmail.8.gz mta-sendmailman /opt/zimbra/common/share/man/man1/sendmail.1 \
       --slave /usr/share/man/man5/aliases.5.gz mta-aliasesman /opt/zimbra/common/share/man/man5/aliases.5 \
       --initscript zimbra
       
alternatives --config mta

zmprov mcf zimbraMtaCommandDirectory /opt/zimbra/common/sbin
zmprov mcf zimbraMtaDaemonDirectory /opt/zimbra/common/libexec
zmprov mcf zimbraMtaMailqPath /opt/zimbra/common/sbin/mailq
zmprov mcf zimbraMtaManpageDirectory /opt/zimbra/common/share/man
zmprov mcf zimbraMtaNewaliasesPath /opt/zimbra/common/sbin/newaliases
zmprov mcf zimbraMtaSendmailPath /opt/zimbra/common/sbin/sendmail