I have a problem with all emails (inbound and outbound) being deferred.
I initially had some extra hostnames in my /etc/hosts file:
126.96.36.199 somename.company.com somename demo.company.com demo mail.company.com company.com
company.com was initially used for install of zcs-5.0.4 rhel4. ldap server details (as per localconfig) referenced this. The original server `hostname` was demo.company.com, but changed a few months ago to somename.company.com. There were no issues with the server hostname change, as zimbra's naming stayed the same. I need to change the zimbra server name, so used the wiki as guidelines.
Error from /var/log/zimbra.log is:
status=deferred (Host or domain name not found. Name service error for name=somename.company.com type=A: Host not found, try again)
188.8.131.52 somename.company.com somename
/etc/resolv.conf (valid nameservers from service provider):
dig company.com mx:
company.com. 300 IN MX 10 somename.jemstep.com.
somename.company.com. 14400 IN A 184.108.40.206
dig company.com any:
company.com. 10618 IN A 220.127.116.11
## nameserver info - all on servers in different networks, working correctly ##
somename.company.com has address 18.104.22.168
seems resolution and dns is configured correctly, but all messages still getting deferred.
1 thing that might be related is that i remember working with zmlocalconf to get mailman integrated with zimbra:
postfix_mydestination = localhost company.com somename.company.com
also, zmlocalconfig shows ldap_host as company.com instead of somename.company.com. after changing this to somename.company.com, i get errors in zimbra.log:
postfix/trivial-rewrite: error: unable tio set STARTTLS: -1: can't contact ldap server
have just updated ldap_url from ldap://somename.company.com to ldap://somename.company.com:389 to see if that helps.