I read through all of the relayhost post that I could find and I'm down to one problem. I'm not authenticating to my relayhost. The message that I receive on bounced email is: 'host outbound.mailhop.org[188.8.131.52] said: 550 You must authenticate to use MailHop Outbound (in reply to MAIL FROM command)' I have check the main.cf and it points to /etc/postfix/sasl_passwd and the only line in the file reads: 'outbound.mailhop.org usrasswd' after I created the file I ran postmap sasl_passwd to creat the db file and it seams to have worked fine. I'm not sure whare to go from here. Any thoughts?