Postfix masks topic content
1. Change the main configuration file to add a line
# vim / etc/postfix/main.cfheader_checks = regexp:/etc/postfix/header_checks
two。 Add rejected topic content
# vim / etc/postfix/header_checks/ ^ subject: test/ Reject
3. Restart the postfix service
# / etc/init.d/postfix reload
4 Test email
Note:
This operation is only applicable to block the topic content in English, including the Chinese theme I can not handle, ask God to know under the notice. Thank you
