echo "This is the body" | mutt -s "Testing mutt" someuser@mail.de

Feb 18 15:37:44 andromeda postfix/pickup[6781]: 1EE9FC05B3: uid=1000   from=<myuser>
Feb 18 15:37:44 andromeda postfix/cleanup[6920]: 1EE9FC05B3: message-id=<20170218143744.7rc5vevuzcqltpfo@somedomainname.strangled.net>
Feb 18 15:37:44 andromeda postfix/qmgr[6134]: 1EE9FC05B3: from=<myuser@somedomainname.strangled.net>, size=477, nrcpt=1 (queue active)
Feb 18 15:37:44 andromeda postfix/error[6922]: 1EE9FC05B3:  to=<myuser.lala@mail.de>, relay=none, delay=0.07, delays=0.05/0.01/0/0.02,   dsn=5.0.0, status=bounced (mail.de)
Feb 18 15:37:44 andromeda postfix/cleanup[6920]: 2B2BAC090C: message-id=<20170218143744.2B2BAC090C@somedomainname.strangled.net>
Feb 18 15:37:44 andromeda postfix/qmgr[6134]: 2B2BAC090C: from=<>, size=2360, nrcpt=1 (queue active)
Feb 18 15:37:44 andromeda postfix/bounce[6923]: 1EE9FC05B3: sender non-delivery notification: 2B2BAC090C
Feb 18 15:37:44 andromeda postfix/qmgr[6134]: 1EE9FC05B3: removed
Feb 18 15:37:44 andromeda postfix/local[6925]: 2B2BAC090C: to=<myuser@somedomainname.strangled.net>, relay=local, delay=0.03, delays=0.01/0.01/0/0.01, dsn=2.0.0, status=sent (delivered to command: procmail -a "$EXTENSION")
Feb 18 15:37:44 andromeda postfix/qmgr[6134]: 2B2BAC090C: removed

[-- Attachment #2: Delivery report --]
[-- Type: message/delivery-status, Encoding: 7bit, Size: 0.3K --]

Reporting-MTA: dns; somedomainname.strangled.net
X-Postfix-Queue-ID: 1EE9FC05B3
X-Postfix-Sender: rfc822; myuser@somedomainname.strangled.net
Arrival-Date: Sat, 18 Feb 2017 15:37:44 +0100 (CET)

Final-Recipient: rfc822; someuser@mail.de
Original-Recipient: rfc822;someuser@mail.de
Action: failed
Status: 5.0.0
Diagnostic-Code: X-Postfix; mail.de

dig somedomainname.strangled.net

; <<>> DiG 9.10.3-P4-Debian <<>> somedomainname.strangled.net
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 17662
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 1

;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 1460
;; QUESTION SECTION:
;somedomainname.strangled.net. IN  A

;; ANSWER SECTION:
somedomainname.strangled.net. 3600 IN  A   1.2.3.4

;; Query time: 176 msec
;; SERVER: 192.168.2.1#53(192.168.2.1)
;; WHEN: Sat Feb 18 15:42:20 CET 2017
;; MSG SIZE  rcvd: 95

dig -x 1.2.3.4

; <<>> DiG 9.10.3-P4-Debian <<>> -x 1.2.3.4
;; global options: +cmd
;; Got answer:
;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 44643
;; flags: qr rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 1

;; OPT PSEUDOSECTION:
; EDNS: version: 0, flags:; udp: 1460
;; QUESTION SECTION:
;4.3.2.1.in-addr.arpa.    IN  PTR

;; ANSWER SECTION:
4.3.2.1.in-addr.arpa. 43200 IN    PTR somedomainname.strangled.net.

;; Query time: 41 msec
;; SERVER: 192.168.2.1#53(192.168.2.1)
;; WHEN: Sat Feb 18 15:44:44 CET 2017
;; MSG SIZE  rcvd: 94

alias_database = hash:/etc/aliases
alias_maps = hash:/etc/aliases
append_dot_mydomain = no
biff = no
bounce_notice_recipient = myuser@localhost
default_transport = error
home_mailbox = Maildir/
inet_interfaces = all
mailbox_command = procmail -a "$EXTENSION"
mailbox_size_limit = 0
mydestination = ${myhostname} localhost.localdomain, localhost
mydomain = strangled.net
myhostname = mickeymouse.${mydomain}
mynetworks = 127.0.0.0/8 [::ffff:127.0.0.0]/104 [::1]/128 6.6.6.6/32
myorigin = $myhostname
readme_directory = no
recipient_delimiter = +
relay_transport = error
relayhost =
smtp_tls_session_cache_database = btree:${data_directory}/smtp_scache
smtpd_banner = $myhostname ESMTP $mail_name (Debian/GNU)
smtpd_relay_restrictions = permit_mynetworks, permit_sasl_authenticated defer_unauth_destination
smtpd_tls_cert_file = /etc/ssl/certs/ssl-cert-snakeoil.pem
smtpd_tls_key_file = /etc/ssl/private/ssl-cert-snakeoil.key
smtpd_tls_session_cache_database = btree:${data_directory}/smtpd_scache
smtpd_use_tls = yes
virtual_alias_maps = hash:/etc/postfix/virtual
virtual_gid_maps = static:5000
virtual_mailbox_base = /home/vmail/
virtual_mailbox_domains = andromeda
virtual_mailbox_maps = hash:/etc/postfix/vmailbox
virtual_minimum_uid = 1000
virtual_uid_maps = static:5000