mouss qpeqrnetoyennet osni passos wrote hello installed configured postfix ubuntuserver tutorial httpgutocarvalhonetmediawikiindexphppostfix_pantaneiro working perfectly except one problem send emails without authenticating spamers party server allows sending emails authentication public mx cant enforce authentication otherwise wouldnt able send mail private mta mail submission users relay hosts read sasl readme httpwwwpostfixorgsasl_readmehtml maincf attached dont next time send output postconf n _inline_ wed 06 aug 2008 203113 0100 postfix running without authentication smtp