When sending mail, Postfix rejects with this message: <mail.example.net>: Helo command rejected: Host not found !! Expected response code 250/251/252 but got code "450", with message "450 4.7.1 <mail.example.net>: Helo command rejected: Host not found" (code: 450) >> RSET << 250 2.0.0 Ok That seems pretty unreasonable to me, because this is in /etc/postfix/main.cf myhostname = mail.example.net mydomain = example.net myorigin = mydomain alias_maps = hash:/etc/aliases alias_database = hash:/etc/aliases mydestination = $myhostname relayhost = mynetworks = mail.example.net 192.168.15.39 127.0.0.0/8 smtpd_helo_restrictions= reject_invalid_helo_hostname, reject_non_fqdn_helo_hostname,reject_unknown_helo_hostname smtpd_recipient_restrictions= permit_mynetworks, permit_sasl_authenticated, check_client_access hash:/etc/postfix/rbl_override, reject_unauth_destination, reject_unknown_recipient_domain, reject_unauth_destination, reject_rbl_client sbl.spamhaus.org, permit home_mailbox = Maildir/ Any suggestions on how I can get this straightened out would be immensely appreciated. Thank you.
change mydestination to just "mydestination =" (probably not the official correct way but this worked for me)
