Hi Suddenly I can't receive mails from outside my domain anymore. Mails from accounts within the server are sent and recieved normally. Mail accounts on the server can recieve mails from mails outside. Code: $TTL 86400 @ IN SOA ns1.first-ns.de. postmaster.robot.first-ns.de. ( 2016031606 ; serial 14400 ; refresh 1800 ; retry 604800 ; expire 86400 ) ; minimum @ IN NS robotns3.second-ns.com. @ IN NS robotns2.second-ns.de. @ IN NS ns1.first-ns.de. @ IN A 136.243.54.13 localhost IN A 127.0.0.1 webmail IN A 136.243.54.13 www IN A 136.243.54.13 ftp IN CNAME www imap IN CNAME webmail loopback IN CNAME localhost pop IN CNAME webmail relay IN CNAME webmail smtp IN CNAME webmail @ IN MX 10 webmail postfix main.cf Code: smtpd_banner = $myhostname ESMTP $mail_name (Ubuntu) biff = no append_dot_mydomain = no readme_directory = no mynetworks = 127.0.0.0/8 [::ffff:127.0.0.0]/104 [::1]/128 mydestination = webmail.marketstrategy.de mailbox_size_limit = 0 message_size_limit = 51200000 recipient_delimiter = 51200000 inet_interfaces = all myorigin = hetzner.marketstrategy.de inet_protocols = all ##### TLS parameters ###### #smtpd_tls_cert_file=/etc/ssl/certs/ssl-cert-snakeoil.pem #smtpd_tls_key_file=/etc/ssl/private/ssl-cert-snakeoil.key smtpd_tls_cert_file=/var/www/webmail/custom_luggie/ssl/webmail.crt smtpd_tls_key_file=/var/www/webmail/custom_luggie/ssl/webmail.key smtpd_use_tls=yes #smtpd_tls_security_level = may #smtp_tls_security_level = may smtpd_tls_mandatory_protocols = !SSLv2, !SSLv3 smtpd_tls_session_cache_database = btree:${data_directory}/smtpd_scache smtp_tls_session_cache_database = btree:${data_directory}/smtp_scache ###### SASL Auth ###### smtpd_sasl_type = dovecot smtpd_sasl_path = private/auth smtpd_sasl_auth_enable = yes ###### Use Dovecot LMTP Service to deliver Mails to Dovecot ###### virtual_transport = lmtp:unix:private/dovecot-lmtp ##### Only allow mail transport if client is authenticated or in own network (PHP Scripts, ...) ###### #smtpd_recipient_restrictions = permit_mynetworks, permit_sasl_authenticated, reject_unauth_destination, reject_rbl_client #smtpd_relay_restrictions = permit_mynetworks, permit_sasl_authenticated, reject_unauth_destination ###### MySQL Connection ###### virtual_alias_maps = mysql:/etc/postfix/virtual/mysql-aliases.cf virtual_mailbox_maps = mysql:/etc/postfix/virtual/mysql-maps.cf virtual_mailbox_domains = mysql:/etc/postfix/virtual/mysql-domains.cf local_recipient_maps = $virtual_mailbox_maps myhostname = webmail.marketstrategy.de ######### #smtpd_sender_login_maps = mysql:/etc/postfix/virtual/sender-login-maps.cf #smtpd_sender_restrictions = permit_mynetworks, reject_non_fqdn_sender, reject_sender_login_mismatch, permit_sasl_authenticated postfix master.cf Code: #bash: c: command not found # # Postfix master process configuration file. For details on the format # of the file, see the master(5) manual page (command: "man 5 master" or # on-line: http://www.postfix.org/master.5.html). # # Do not forget to execute "postfix reload" after editing this file. # # ========================================================================== # service type private unpriv chroot wakeup maxproc command + args # (yes) (yes) (yes) (never) (100) # ========================================================================== #smtp inet n - - - - smtpd #smtp inet n - - - 1 postscreen #smtpd pass - - - - - smtpd #dnsblog unix - - - - 0 dnsblog #tlsproxy unix - - - - 0 tlsproxy submission inet n - - - - smtpd -v -o syslog_name=postfix/submission -o smtpd_tls_security_level=encrypt -o smtpd_sasl_type=dovecot -o smtpd_sasl_path=private/auth -o smtpd_sasl_security_options=noanonymous -o smtpd_sasl_auth_enable=yes -o smtpd_client_restrictions=permit_sasl_authenticated,reject #smtps inet n - - - - smtpd # -o syslog_name=postfix/smtps # -o smtpd_tls_wrappermode=yes # -o smtpd_sasl_auth_enable=yes # -o smtpd_reject_unlisted_recipient=no # -o smtpd_client_restrictions=$mua_client_restrictions # -o smtpd_helo_restrictions=$mua_helo_restrictions # -o smtpd_sender_restrictions=$mua_sender_restrictions # -o smtpd_recipient_restrictions= # -o smtpd_relay_restrictions=permit_sasl_authenticated,reject # -o milter_macro_daemon_name=ORIGINATING #628 inet n - - - - qmqpd pickup unix n - - 60 1 pickup cleanup unix n - - - 0 cleanup qmgr unix n - n 300 1 qmgr #qmgr unix n - n 300 1 oqmgr tlsmgr unix - - - 1000? 1 tlsmgr rewrite unix - - - - - trivial-rewrite bounce unix - - - - 0 bounce defer unix - - - - 0 bounce trace unix - - - - 0 bounce verify unix - - - - 1 verify flush unix n - - 1000? 0 flush proxymap unix - - n - - proxymap proxywrite unix - - n - 1 proxymap smtp unix - - - - - smtp relay unix - - - - - smtp # -o smtp_helo_timeout=5 -o smtp_connect_timeout=5 showq unix n - - - - showq error unix - - - - - error retry unix - - - - - error discard unix - - - - - discard local unix - n n - - local virtual unix - n n - - virtual lmtp unix - - - - - lmtp anvil unix - - - - 1 anvil scache unix - - - - 1 scache # # ==================================================================== # Interfaces to non-Postfix software. Be sure to examine the manual # pages of the non-Postfix software to find out what options it wants. # # Many of the following services use the Postfix pipe(8) delivery # agent. See the pipe(8) man page for information about ${recipient} # and other message envelope options. # ==================================================================== # # maildrop. See the Postfix MAILDROP_README file for details. # Also specify in main.cf: maildrop_destination_recipient_limit=1 # maildrop unix - n n - - pipe flags=DRhu user=vmail argv=/usr/bin/maildrop -d ${recipient} # # ==================================================================== # # Recent Cyrus versions can use the existing "lmtp" master.cf entry. # # Specify in cyrus.conf: # lmtp cmd="lmtpd -a" listen="localhost:lmtp" proto=tcp4 # # Specify in main.cf one or more of the following: # mailbox_transport = lmtp:inet:localhost # virtual_transport = lmtp:inet:localhost # # ==================================================================== # # Cyrus 2.1.5 (Amos Gouaux) # Also specify in main.cf: cyrus_destination_recipient_limit=1 # #cyrus unix - n n - - pipe # user=cyrus argv=/cyrus/bin/deliver -e -r ${sender} -m ${extension} ${user} # # ==================================================================== # Old example of delivery via Cyrus. # #old-cyrus unix - n n - - pipe # flags=R user=cyrus argv=/cyrus/bin/deliver -e -m ${extension} ${user} # # ==================================================================== # # See the Postfix UUCP_README file for configuration details. # uucp unix - n n - - pipe flags=Fqhu user=uucp argv=uux -r -n -z -a$sender - $nexthop!rmail ($recipient) # # Other external delivery methods. # ifmail unix - n n - - pipe flags=F user=ftn argv=/usr/lib/ifmail/ifmail -r $nexthop ($recipient) bsmtp unix - n n - - pipe flags=Fq. user=bsmtp argv=/usr/lib/bsmtp/bsmtp -t$nexthop -f$sender $recipient scalemail-backend unix - n n - 2 pipe flags=R user=scalemail argv=/usr/lib/scalemail/bin/scalemail-store ${nexthop} ${user} ${extension} mailman unix - n n - - pipe flags=FR user=list argv=/usr/lib/mailman/bin/postfix-to-mailman.py ${nexthop} ${user} hostname -f : hetzner.marketstrategy.de mxtoolbox / telnet 136.243.54.13 25 : failed to connect The Port 25 is not open for some reason. periodicly mail.log creates hetzner.marketstrategy.de: Code: status=bounced (Host or domain name not found. Name service error for name=hetzner.marketstrategy.de type=AAAA: Host not found) I'm absolutly out of ideas. pls help :[
One thing confuses me a little: You're trying to telnet to 136.243.54.13 port 25 your MX entry resolves to webmail.* which has 188.40.7.122 However your postfix say it's hetzner.marketstrategy.de - which does not resolve ( right now ).
my bad. its fixed now to 136.243.54.13 where it doesnt work. 188 ... is and old server where smtp works. I changed my post to what it really is set up.
myorigin and mydestination usually are set to the hostname of the server, your entries differ. your inet_protocols is set to all but it appears your using IPv4 as external IP only, thus it complains about missing AAAA record for IPv6 You also commented out so you won't have anything listening on port 25, thus might be the main issue why you can't receive mails from the outside.
