On Fri, Jun 07, 2013 at 10:46:46PM +1000, Nikolas Kallis wrote: > (...) 'reject_non_fqdn_helo_hostname' (...)
reject_non_fqdn_helo_hostname will make your life miserable and block very little spam, assuming this third reject_non_fqdn_helo_hostname related thread of yours is still about rejecting spammers.