On Sun, 2016-05-01 at 10:57 +0200, Leon Fauster wrote: > blacklisting is not a good practice, use the suggested whitelist ... I disagree from practical experience. My Exim mail servers (MTAs) refused connections from 'amateur' mail senders such as:- *dynamic.163data.com.cn *airtelbroadband.in *adsl.alicedsl.de *dynamic.se.alltele.net *alshamil.net.ae *adsl.anteldata.net.uy *aphie.info *pools.arcor-ip.net *static.arcor-ip.net *as9105.com *as13285.net *as43234.net et cetera and from professional spammers *compute.amazonaws.com *isp.att.net *bmsend.com *chtah.com *chtah.net *descene.org *dmdelivery.com *dnsinspect.com *edmspread.com *emsmtp.com *emsmtp.us *everydayedeals.com et cetera My philosophy is not to be a willing victim of spam and other unwanted time-wasting junk. It is only when concerned citizens like Alice (in) Wonder(land) critically re-examine the status quo, and the justification for it, that things may improve. Mankind never advances when there is no questioning of established practises. -- Regards, Paul. England, EU. England's place is in the European Union.