Main Operation Principles

Dr.Web MailD can be connected to Postfix in one of the following ways:

•In the after-queue mode (http://www.postfix.org/FILTER_README.html#advanced_filter);

•In the before-queue mode (http://www.postfix.org/SMTPD_PROXY_README.html);

•Using Milter protocol (http://www.postfix.org/MILTER_README.html).