Achal tomar: > from: Facebook [email protected] > reply-to: noreply <[email protected]> > to: Achal Tomar <[email protected]> > date: Wed, Jul 11, 2012 at 6:57 PM > subject: Abhishek Awasthi tagged a photo of you on Facebook > mailed-by: facebookmail.com > signed-by: facebookmail.com > > This is details of mail i received from facebook,here mailed-by: and > signed-by: headers are same this is important for mail authentication. > I also want to implement this in my postfix mail server is there any method > to achieve this.
DKIM implements signing and verification. http://www.ietf.org/rfc/rfc6376.txt With the Postfix Milter interface: http://www.opendkim.org/ http://www.postfix.org/MILTER_README.html With the amavisd-new content filter: http://www.ijs.si/software/amavisd/amavisd-new-docs.html#dkim Wietse
