smtpd_use_tls=yessmtpd_tls_session_cache_database = btree:${data_directory}/smtpd_scachesmtp_tls_session_cache_database = btree:${data_directory}/smtp_scache# See /usr/share/doc/postfix/TLS_README.gz in the postfix-doc package for# information on enabling SSL in the smtp client.smtpd_relay_restrictions = permit_mynetworks permit_sasl_authenticated     defer_unauth_destinationmyhostname = localhost.localdomainmyorigin = localhost.localdomainmydestination = alias_maps = hash:/etc/aliasesalias_database = hash:/etc/aliasesrelayhost = mynetworks = 127.0.0.0/8 [::ffff:127.0.0.0]/104 [::1]/128mailbox_size_limit = 0recipient_delimiter = +inet_interfaces = 127.0.0.1default_transport = smtp    relay_transport = relayinet_protocols = allvirtual_mailbox_domains = mysql:/etc/postfix/mysql-virtual-mailbox-domains.cfvirtual_mailbox_maps = mysql:/etc/postfix/mysql-virtual-mailbox-maps.cfvirtual_alias_maps = mysql:/etc/postfix/mysql-virtual-alias-maps.cfvirtual_mailbox_base = /var/spool/mailSo the problem is, it tells me now there is a configuration error. And when I try to send a mail, it also tells me:status=bounced (mail for localhost loops back to myself)Full log:Aug  2 13:00:20 imapaka-01 postfix/smtpd[15528]: connect from localhost.localdomain[127.0.0.1]Aug  2 13:00:37 imapaka-01 postfix/smtpd[15528]: improper command pipelining after EHLO from localhost.localdomain[127.0.0.1]: mail from: root@localhost\r\nrcpt to: test@localhost.localdomain\r\ndata\r\nSubject:Testnachricht\r\n\rAug  2 13:00:37 imapaka-01 postfix/smtpd[15528]: 53B5A625269: client=localhost.localdomain[127.0.0.1]Aug  2 13:00:37 imapaka-01 postfix/cleanup[15532]: 53B5A625269: message-id=<20170802110037.53B5A625269@localhost.localdomain>Aug  2 13:00:37 imapaka-01 postfix/qmgr[15523]: 53B5A625269: from=<root@localhost>, size=395, nrcpt=1 (queue active)Aug  2 13:00:37 imapaka-01 postfix/smtp[15534]: 53B5A625269: to=<test@localhost>, orig_to=<test@localhost.localdomain>, relay=none, delay=0.04, delays=0.03/0.01/0/0, dsn=5.4.6, status=bounced (mail for localhost loops back to myself)Aug  2 13:00:37 imapaka-01 postfix/cleanup[15532]: 607A662526B: message-id=<20170802110037.607A662526B@localhost.localdomain>Aug  2 13:00:37 imapaka-01 postfix/bounce[15535]: 53B5A625269: sender non-delivery notification: 607A662526BAug  2 13:00:37 imapaka-01 postfix/qmgr[15523]: 607A662526B: from=<>, size=2423, nrcpt=1 (queue active)Aug  2 13:00:37 imapaka-01 postfix/qmgr[15523]: 53B5A625269: removedAug  2 13:00:37 imapaka-01 postfix/smtp[15534]: 607A662526B: to=<root@localhost>, relay=none, delay=0.02, delays=0.02/0/0/0, dsn=5.4.6, status=bounced (mail for localhost loops back to myself)Aug  2 13:00:37 imapaka-01 postfix/qmgr[15523]: 607A662526B: removedAug  2 13:00:38 imapaka-01 postfix/smtpd[15528]: disconnect from localhost.localdomain[127.0.0.1] ehlo=1 mail=1 rcpt=1 data=1 quit=1 commands=5
Postfix configuration Error, Status=dereffered... But where?
ubuntu;email;postfix