Our users keep getting mails which contain subject line start with "Naukri.com" and they want to block these mails.
I have gone through zimbra wiki and below mentioned link which is very useful :
[SOLVED] blocking by subject or by IP
and i have added below high lighted line in /opt/zimbra/conf/postfix_header_checks
REJECT For security reasons we reject attachments of this type
REJECT Attachment type not allowed. File "$2" has the unacceptable extension "$3"
/^Subject:.*(Naukri.com)/ REJECT Banned Subject
and ran postfix reload and again checked but found that above high lighted line was not there...it was not accepting changes after relaoding postfix...Am i doing anything wrong ??? is this high lighted format is correct or need any changes??