I have problems on my ZCS Release 5.0.18_GA_3011.UBUNTU8 UBUNTU8 NETWORK edition after carrying out steps in the RestrictPostfixSenders - Zimbra :: Wiki post.

when I do tail /var/log/zimbra.log.0 I am getting:

Jan 13 06:46:54 lsamail postfix/smtpd[6122]: fatal: unsupported dictionary type: sh
Jan 13 06:46:55 lsamail postfix/master[8529]: warning: process /opt/zimbra/postfix/libexec/smtpd pid 6122 exit status 1
Jan 13 06:46:55 lsamail postfix/master[8529]: warning: /opt/zimbra/postfix/libexec/smtpd: bad command startup -- throttling

Any help how I can reverse this situation