Postfix kann keine Emails von gmx u. a. erhalten

# See /usr/share/postfix/main.cf.dist for a commented, more complete version


# Debian specific:  Specifying a file name will cause the first
# line of that file to be used as the name.  The Debian default
# is /etc/mailname.
#myorigin = /etc/mailname

smtpd_banner = $myhostname ESMTP $mail_name (Debian/GNU)
biff = no

# appending .domain is the MUA's job.
append_dot_mydomain = no

# Uncomment the next line to generate "delayed mail" warnings
#delay_warning_time = 4h

readme_directory = no

# TLS parameters
smtpd_tls_cert_file=/etc/ssl/certs/ssl-cert-snakeoil.pem
smtpd_tls_key_file=/etc/ssl/private/ssl-cert-snakeoil.key
smtpd_use_tls=yes
smtpd_tls_session_cache_database = btree:${data_directory}/smtpd_scache
smtp_tls_session_cache_database = btree:${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.

myhostname = raspberrypi
alias_maps = hash:/etc/aliases
alias_database = hash:/etc/aliases
myorigin = /etc/mailname
mydestination = netconsulting.co.at, raspberrypi, localhost.localdomain, localhost
relayhost =
#mynetworks = 127.0.0.0/8 [::ffff:127.0.0.0]/104 [::1]/128
mynetworks = 84.112.182.0/24, 127.0.0.0/8, 192.168.1.0/24
mailbox_size_limit = 0
recipient_delimiter = +
inet_interfaces = all
home_mailbox = Maildir/
[/lcode]

und meine dovecot.cong

[code]!
include_try /usr/share/dovecot/protocols.d/*.protocol
listen = *
login_trusted_networks = 192.168.1.0/24, 84.112.182.0/24, 0.0.0.0/8

dict {
}

!include conf.d/*.conf

mail_location = maildir:~/Maildir
pop3_client_workarounds = outlook-no-nuls oe-ns-eoh

!include_try local.conf

smtpd_client_restrictions =
smtpd_sender_restrictions = reject_unknown_sender_domain
smtpd_sender_restrictions =
    permit_mynetworks,
    reject_non_fqdn_sender,
    reject_unknown_sender_domain,
    permit

Aug 11 20:15:55 mail postfix/smtp[14807]: 5CA6C1059A: to=<bernd.r@gmx.at>, relay=mx0.gmx.net[213.165.64.100]:25, delay=7047, delays=7045/1.1/0.59/0, dsn=4.4.2, status=deferred (lost connection with mx0.gmx.net[213.165.64.100] while receiving the initial server greeting)