Editing Zimbra Enabling Subject Line In logs

[[Category:Zimbra]]
[[category:Triburg]]

'''Adding Subject Information on the log'''

If we want to see subject information in zimbra.logs then we can follow below steps: 

Logged in with zimbra user:
 [root@mail ~]# su - zimbra

Run below commands to check current staus you will get below output:
 [zimbra@mail ~]$ zmlocalconfig | grep header_checks
  postfix_header_checks = pcre:${zimbra_home}/conf/postfix_header_checks
 
 [zimbra@mail ~]$ postconf | grep header_checks
 header_checks = 
 lmtp_header_checks = 
 lmtp_mime_header_checks = 
 lmtp_nested_header_checks = 
 mime_header_checks = $header_checks
 nested_header_checks = $header_checks
 smtp_header_checks = 
 smtp_mime_header_checks = 
 smtp_nested_header_checks = 

Now create a file:
 [zimbra@mail ~]$ vim /opt/zimbra/conf/custom_header_checks
Add below line in this file:
 /^subject:/ WARN
 '''Note:''' We can add our own header_checks in this file.

Then run below commands:

 [zimbra@mail ~]$ zmlocalconfig -e postfix_header_checks="pcre:/opt/zimbra/conf/postfix_header_checks, pcre:/opt/zimbra/conf/custom_header_checks"
 [zimbra@mail ~]$ zmmtactl restart
 Rewriting configuration files...done.
 Stopping zmmtaconfig...done.
 Starting zmmtaconfig...done.
 postfix/postfix-script: refreshing the Postfix mail system
 Stopping saslauthd...done.
 Starting saslauthd...done.

Now run again below commands to check configuration: 

 [zimbra@mail ~]$ zmlocalconfig | grep postfix_header_checks
 postfix_header_checks = pcre:/opt/zimbra/conf/postfix_header_checks, pcre:/opt/zimbra/conf/custom_header_checks
 [zimbra@mail ~]$ postconf | grep header_checks
 header_checks = pcre:/opt/zimbra/conf/postfix_header_checks, pcre:/opt/zimbra/conf/custom_header_checks
 lmtp_header_checks = 
 lmtp_mime_header_checks = 
 lmtp_nested_header_checks = 
 mime_header_checks = $header_checks
 nested_header_checks = $header_checks
 smtp_header_checks = 
 smtp_mime_header_checks = 
 smtp_nested_header_checks = 

Run below command and restart the mta service:
 [zimbra@mail ~]$ zmprov mcf zimbraMtaBlockedExtensionWarnRecipient FALSE
 [zimbra@mail ~]$ zmmtactl restart
 Rewriting configuration files...done.
 Stopping zmmtaconfig...done.
 Starting zmmtaconfig...done.
 postfix/postfix-script: refreshing the Postfix mail system
 Stopping saslauthd...done.
 Starting saslauthd...done.

Ref_Link : [https://wiki.zimbra.com/wiki/King0770-Notes-Header-Checks]