Bruce Marriner: > Thanks, I'll read about that tool. I'm pretty new to DKIM/SPF and am > just now trying to set it up. I've been using postgrey for awhile and
Since DKIM requires content inspection and you want decisions before Postfix replies to end-of-data, another option is to use the smtpd_proxy_filter or smtpd_milters feature (both as before-queue content filters) and to let the filter tempfail the message depending on DKIM/greylist results. http://www.postfix.org/SMTPD_PROXY_README.html http://www.postfix.org/MILTER_README.html Wietse