bowie bailey hehjp_onratpbuccom francesco abeni wrote good morning everyone im charge reducing spam customer site already spamassassin saupdate weeklyexecuted id like implement bogus mx filtering spam dont know correct name bogus mx mean setting low priority mx record points nonsmtp server id like know firsthand experience two questions 1 caused lost mail issue client complaints know every half decent mail server try mx real life often received complaints valid senders 2 reduced significantly spam id like know worth little trouble setup verifying question 1 thank time would say risky put nonsmtp host primary mx servers problem setup either unable deliver mail delay mail another option secondary mx record many spam sources tend prefer higher priority servers assumption may well protected primary server side effect disabling secondary server never replacing havent problems something else useful using mta blacklist use zenspamhausorg blacklist mta resisted using mta blacklist long time spam volume finally got much implemented one since seemed reliable cuts spam considerably havent complaints blocked emails yet blocked almost 14000 emails yesterday server 10x amount mail made users mailboxes 60 marked spam bowie thu 07 aug 2008 010841 0500 ot bogus mx opinions