Due security due diligent, we need to remove the pattern (Postfix) in our email header.
Here is an eg:
Received: from Simon-Vs-MBCuiPap.local (unknown [18.104.22.168]) (using TLSv1 with cipher DHE-RSA-CAMELLIA256-SHA (256/256 bits)) (No client certificate requested) (Authenticated sender: firstname.lastname@example.org) by mail.domain.com ***(Postfix)*** with ESMTPSA id DE1545E37B for <email@example.com>; Wed, 16 May 2012 15:38:47 +0800 (SGT)
How can i remove (Postfix) and keep other information ? I try to use header_check by REPLACE, but it is replacing whole line, not only for (Postfix)
Pls help me.