Since I upgraded a while ago I have the same issue with the postfix conf file (main.cf):
Code:
Starting mta...Failed.
postalias: fatal: bad string length 0 < 1: inet_protocols =
postfix failed to start
I did what camunai suggested and now I got this on my zimbra.log when tried to start postfix manually
Code:
Feb 8 11:01:21 mail postfix/master[29724]: daemon started -- version 2.7.7, configuration /opt/zimbra/postfix-2.7.7.3z/conf
Feb 8 11:01:22 mail saslauthd[29732]: detach_tty : master pid is: 29732
Feb 8 11:01:22 mail saslauthd[29732]: ipc_init : listening on socket: /opt/zimbra/cyrus-sasl-2.1.23.3z/state/mux
Feb 8 11:01:22 mail zimbramon[27471]: 27471:info: Starting stats via zmcontrol
Feb 8 11:01:23 mail postfix/smtpd[29795]: fatal: host/service 127.0.0.1/None not found: Servname not supported for ai_socktype
Feb 8 11:01:24 mail postfix/master[29724]: warning: process /opt/zimbra/postfix/libexec/smtpd pid 29795 exit status 1
Feb 8 11:01:24 mail postfix/master[29724]: warning: /opt/zimbra/postfix/libexec/smtpd: bad command startup -- throttling

I have googled a lot but i didn't find anything similar.
I did search for smtp in my /etc/services file and it's ok.
When i got this issue I manually edited my main.cf via
vim or
postconf and then started postfix via
/opt/zimbra/postfix/sbin/postfix {start | reload} but this time is not working.
Then i mainly got this in my zimbra.log
Code:
Feb 8 11:02:25 mail postfix/master[29724]: warning: process /opt/zimbra/postfix/libexec/smtpd pid 31239 exit status 1
Feb 8 11:02:25 mail postfix/master[29724]: warning: process /opt/zimbra/postfix/libexec/smtpd pid 31240 exit status 1
Feb 8 11:02:25 mail postfix/master[29724]: warning: process /opt/zimbra/postfix/libexec/smtpd pid 31241 exit status 1
Is there anyone with the same problem?