Translation(s): English - Русский
Domain Keys Identified Mail (DKIM) combines several existing antiphishing and antispam methods to improve the quality of the classification and identification of legitimate e-mail. Instead of the traditional IP-address, to determine the message sender DKIM adds a digital signature associated with the domain name of the organization.
dkim
Postfix and opendkim
Install the package:
apt-get install opendkim opendkim-tools