Cannot start the MTA after system cleanup

[andremta]

I used this bash script to cleanup the ubuntu system.

Apparently it messed with postfix group/user and now the MTA cannot start.

zimbra@intranet:~$ zmcontrol start
Host mail.domain.com
Starting ldap...Done.
Starting logger...Done.
Starting mailbox...Done.
Starting antispam...Done.
Starting antivirus...Done.
Starting snmp...Done.
Starting spell...Done.
Starting mta...FAILED
Starting zmmtaconfig...zmmtaconfig is already running.
chgrp: invalid group: `postfix'
postmap: fatal: file /opt/zimbra/postfix-2.4.7.5z/conf/main.cf: parameter mail_owner: unknown user name value: postfix
postalias: fatal: file /opt/zimbra/postfix-2.4.7.5z/conf/main.cf: parameter mail_owner: unknown user name value: postfix
postfix failed to start
Starting saslauthd...done.

Starting stats...Done.
zimbra@intranet:~$

I noticed that /opt/zimbra/postfix was having all files owned by root.
I did this:

chown -R zimbra:zimbra /opt/zimbra/*
cd /opt/zimbra/libexec
./zmfixperms (as root)

atenreiro@intranet:/opt/zimbra/libexec$ sudo ./zmfixperms
chown: cannot access `/opt/zimbra/clamav/db': No such file or directory
chown: invalid group: `rootostfix'
chgrp: invalid group: `postdrop'
chgrp: invalid group: `postdrop'
chown: invalid user: `postfixostfix'
chgrp: invalid group: `postfix'
chgrp: invalid group: `postdrop'
chgrp: invalid group: `postdrop'
chgrp: invalid group: `postfix'
chgrp: invalid group: `postfix'
chgrp: invalid group: `postfix'
chgrp: invalid group: `postfix'
chgrp: invalid group: `postfix'
chgrp: invalid group: `postfix'
atenreiro@intranet:/opt/zimbra/libexec$

I have also these kind of ERRORS in the zimbra.log:

Jul 23 20:37:25 intranet zimbramon[13714]: 13714:info: zmmtaconfig: ERROR: /opt/zimbra/postfix/sbin/postconf -e myhostname='mail.domain.com' rc=256 No child processes

How can I set the system back to normal?

[andremta]

I guess the cleanup script removed the postfix user and group.

How can I setup these again?

sudo apt-get install postfix

is not a good idea isn't it? It will mess even more with Zimbra?

[bdial]

you can use useradd and groupadd commands

[andremta]

Originally Posted by bdial

you can use useradd and groupadd commands

Thanks bdial,

That was what I did and apparently MTA is now working.

Some tips for any users having this problem:

- manual create postfix/postdrop/maildrop accounts.
- run /opt/zimbra/libexec/zmfixperms
- run postfix check
- run postfix set-permissions