On Friday, September 18, 2015 01:41 PM CDT, [email protected] (Wietse Venema) wrote:
> 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 Oh, thanks I'll read about those more too. The guide I followed to setup opendkim actually did have me set it up using the smtpd_milters setting. I'll have to read up on how to.. tempfail :)
