Can send mail but can't receive mail.

Discussion in 'Installation/Configuration' started by danhansen@denmark, Apr 14, 2013.

  1. danhansen@denmark

    danhansen@denmark HowtoForge Supporter

    Ubuntu Server 12.04
    ISPconfig3 v.3.0.5.2
    Sqirrelmail

    Hi,

    I am able to send mail from within the webmail using an account created in ISPconfig 3 CP.
    DNS is set up correctly (I hope):) with A-record "mail" --> ispserverip and a MX-record as well..
    I have inserted my mail-log beneath

    Looking forward to hear from you :)

    Kind Regards,
    Dan

    Code:
    Apr 14 08:33:01 server1 postfix/smtpd[2350]: warning: hostname localhost does not resolve to address ::1: No address associated with hostname
    Apr 14 08:33:01 server1 postfix/smtpd[2350]: connect from unknown[::1]
    Apr 14 08:33:01 server1 postfix/smtpd[2350]: lost connection after CONNECT from unknown[::1]
    Apr 14 08:33:01 server1 postfix/smtpd[2350]: disconnect from unknown[::1]
    Apr 14 08:33:01 server1 pop3d: Connection, ip=[::1]
    Apr 14 08:33:01 server1 pop3d: Disconnected, ip=[::1]
    Apr 14 08:33:01 server1 imapd: Connection, ip=[::1]
    Apr 14 08:33:01 server1 imapd: Disconnected, ip=[::1], time=0
    Apr 14 08:34:01 server1 postfix/smtpd[2350]: warning: hostname localhost does not resolve to address ::1: No address associated with hostname
    Apr 14 08:34:01 server1 postfix/smtpd[2350]: connect from unknown[::1]
    Apr 14 08:34:01 server1 postfix/smtpd[2350]: lost connection after CONNECT from unknown[::1]
    Apr 14 08:34:01 server1 postfix/smtpd[2350]: disconnect from unknown[::1]
    Apr 14 08:34:01 server1 pop3d: Connection, ip=[::1]
    Apr 14 08:34:01 server1 pop3d: Disconnected, ip=[::1]
    Apr 14 08:34:01 server1 imapd: Connection, ip=[::1]
    Apr 14 08:34:01 server1 imapd: Disconnected, ip=[::1], time=0
    Apr 14 08:35:01 server1 postfix/smtpd[2350]: warning: hostname localhost does not resolve to address ::1: No address associated with hostname
    Apr 14 08:35:01 server1 postfix/smtpd[2350]: connect from unknown[::1]
    Apr 14 08:35:01 server1 postfix/smtpd[2350]: lost connection after CONNECT from unknown[::1]
    Apr 14 08:35:01 server1 postfix/smtpd[2350]: disconnect from unknown[::1]
    Apr 14 08:35:01 server1 pop3d: Connection, ip=[::1]
    Apr 14 08:35:01 server1 pop3d: Disconnected, ip=[::1]
    Apr 14 08:35:01 server1 imapd: Connection, ip=[::1]
    Apr 14 08:35:01 server1 imapd: Disconnected, ip=[::1], time=0
    Apr 14 08:35:02 server1 postfix/smtpd[2350]: warning: hostname localhost does not resolve to address ::1: No address associated with hostname
    Apr 14 08:35:02 server1 postfix/smtpd[2350]: connect from unknown[::1]
    Apr 14 08:35:02 server1 postfix/smtpd[2350]: lost connection after CONNECT from unknown[::1]
    Apr 14 08:35:02 server1 postfix/smtpd[2350]: disconnect from unknown[::1]
    Apr 14 08:35:02 server1 pop3d: Connection, ip=[::1]
    Apr 14 08:35:02 server1 pop3d: Disconnected, ip=[::1]
    Apr 14 08:35:02 server1 imapd: Connection, ip=[::1]
    Apr 14 08:35:02 server1 imapd: Disconnected, ip=[::1], time=0
    Apr 14 08:36:01 server1 postfix/smtpd[2350]: warning: hostname localhost does not resolve to address ::1: No address associated with hostname
    Apr 14 08:36:01 server1 postfix/smtpd[2350]: connect from unknown[::1]
    Apr 14 08:36:01 server1 postfix/smtpd[2350]: lost connection after CONNECT from unknown[::1]
    Apr 14 08:36:01 server1 postfix/smtpd[2350]: disconnect from unknown[::1]
    Apr 14 08:36:01 server1 pop3d: Connection, ip=[::1]
    Apr 14 08:36:01 server1 pop3d: Disconnected, ip=[::1]
    Apr 14 08:36:01 server1 imapd: Connection, ip=[::1]
    Apr 14 08:36:01 server1 imapd: Disconnected, ip=[::1], time=0
    Apr 14 08:37:01 server1 postfix/smtpd[2350]: warning: hostname localhost does not resolve to address ::1: No address associated with hostname
    Apr 14 08:37:01 server1 postfix/smtpd[2350]: connect from unknown[::1]
    Apr 14 08:37:01 server1 postfix/smtpd[2350]: lost connection after CONNECT from unknown[::1]
    Apr 14 08:37:01 server1 postfix/smtpd[2350]: disconnect from unknown[::1]
    Apr 14 08:37:01 server1 pop3d: Connection, ip=[::1]
    Apr 14 08:37:01 server1 pop3d: Disconnected, ip=[::1]
    Apr 14 08:37:01 server1 imapd: Connection, ip=[::1]
    Apr 14 08:37:01 server1 imapd: Disconnected, ip=[::1], time=0
    Apr 14 08:38:01 server1 postfix/smtpd[2350]: warning: hostname localhost does not resolve to address ::1: No address associated with hostname
    Apr 14 08:38:01 server1 postfix/smtpd[2350]: connect from unknown[::1]
    Apr 14 08:38:01 server1 postfix/smtpd[2350]: lost connection after CONNECT from unknown[::1]
    Apr 14 08:38:01 server1 postfix/smtpd[2350]: disconnect from unknown[::1]
    Apr 14 08:38:01 server1 pop3d: Connection, ip=[::1]
    Apr 14 08:38:01 server1 pop3d: Disconnected, ip=[::1]
    Apr 14 08:38:01 server1 imapd: Connection, ip=[::1]
    Apr 14 08:38:01 server1 imapd: Disconnected, ip=[::1], time=0
    Apr 14 08:39:02 server1 postfix/smtpd[2350]: warning: hostname localhost does not resolve to address ::1: No address associated with hostname
    Apr 14 08:39:02 server1 postfix/smtpd[2350]: connect from unknown[::1]
    Apr 14 08:39:02 server1 postfix/smtpd[2350]: lost connection after CONNECT from unknown[::1]
    Apr 14 08:39:02 server1 postfix/smtpd[2350]: disconnect from unknown[::1]
    Apr 14 08:39:02 server1 pop3d: Connection, ip=[::1]
    Apr 14 08:39:02 server1 pop3d: Disconnected, ip=[::1]
    Apr 14 08:39:02 server1 imapd: Connection, ip=[::1]
    Apr 14 08:39:02 server1 imapd: Disconnected, ip=[::1], time=0
    Apr 14 08:40:01 server1 postfix/smtpd[2350]: warning: hostname localhost does not resolve to address ::1: No address associated with hostname
    Apr 14 08:40:01 server1 postfix/smtpd[2350]: connect from unknown[::1]
    Apr 14 08:40:01 server1 postfix/smtpd[2350]: lost connection after CONNECT from unknown[::1]
    Apr 14 08:40:01 server1 postfix/smtpd[2350]: disconnect from unknown[::1]
    Apr 14 08:40:01 server1 pop3d: Connection, ip=[::1]
    Apr 14 08:40:01 server1 pop3d: Disconnected, ip=[::1]
    Apr 14 08:40:01 server1 imapd: Connection, ip=[::1]
    Apr 14 08:40:01 server1 imapd: Disconnected, ip=[::1], time=0
    Apr 14 08:40:01 server1 postfix/smtpd[2350]: warning: hostname localhost does not resolve to address ::1: No address associated with hostname
    Apr 14 08:40:01 server1 postfix/smtpd[2350]: connect from unknown[::1]
    Apr 14 08:40:01 server1 postfix/smtpd[2350]: lost connection after CONNECT from unknown[::1]
    Apr 14 08:40:01 server1 postfix/smtpd[2350]: disconnect from unknown[::1]
    Apr 14 08:40:01 server1 pop3d: Connection, ip=[::1]
    Apr 14 08:40:01 server1 pop3d: Disconnected, ip=[::1]
    Apr 14 08:40:01 server1 imapd: Connection, ip=[::1]
    Apr 14 08:40:01 server1 imapd: Disconnected, ip=[::1], time=0
    
     
  2. till

    till Super Moderator

    The log does not contain any connections from a external mailserver, so the problem can be:

    1) The dns record is not corrcet.
    2) Port 25 is not forwarded from router to the server IP if your server is installed in a local network.
    3) Port 25 is blocked by a firewall on the server, a router or by your ISP.
    4) Postfix is not listening on the external network interface.

    Please post the output of:

    netstat -tap

    and

    iptables -L
     
  3. danhansen@denmark

    danhansen@denmark HowtoForge Supporter

    netstat -tap & iptables -L comming up...

    ---------------------------------------------------------------------------------------------
    Internet Service Information:
    Internet Line/Used only for Internet-Servers.
    Static/Fixed public IP
    All ports opened in router --> "ispserverip"
    Primary nameserver --> ns1.mynameserver.tld
    Secondary nameserver --> ns2.somedanishdomainservice.tld

    System Information:
    Ubuntu Server 12.04 (upgraded - do-release-upgrade)
    ISPconfig 3 v.3.0.5.2
    Single Server Setup (running primary nameserver)
    Tutorial: The Perfect Server - ISPConfig3 - Ubuntu Server 10.04
    Downloaded Manual for ISPConfig3 by Falko Timme
    ---------------------------------------------------------------------------------------------


    Hi Till,

    Thank you for helping me o)

    Here's the to output's you requested:

    netstat -tap
    Code:
    root@server1:/home/administrator# netstat -tap
    Active Internet connections (servers and established)
    Proto Recv-Q Send-Q Local Address           Foreign Address         State       PID/Program name
    tcp        0      0 localhost:10024         *:*                     LISTEN      1198/amavisd (maste
    tcp        0      0 localhost:10025         *:*                     LISTEN      2156/master
    tcp        0      0 *:mysql                 *:*                     LISTEN      1052/mysqld
    tcp        0      0 localhost:spamd         *:*                     LISTEN      1328/spamd.pid
    tcp        0      0 *:http-alt              *:*                     LISTEN      3448/apache2
    tcp        0      0 *:http                  *:*                     LISTEN      3448/apache2
    tcp        0      0 *:tproxy                *:*                     LISTEN      3448/apache2
    tcp        0      0 *:8082                  *:*                     LISTEN      3448/apache2
    tcp        0      0 *:ftp                   *:*                     LISTEN      11946/pure-ftpd (SE
    tcp        0      0 server1.mydomain2.:domain *:*                     LISTEN      1039/named
    tcp        0      0 localhost:domain        *:*                     LISTEN      1039/named
    tcp        0      0 *:ssh                   *:*                     LISTEN      824/sshd
    tcp        0      0 *:smtp                  *:*                     LISTEN      2156/master
    tcp        0      0 localhost:953           *:*                     LISTEN      1039/named
    tcp        0      0 *:https                 *:*                     LISTEN      3448/apache2
    tcp        0      0 localhost:http          localhost:49841         TIME_WAIT   -
    tcp        0      0 localhost:http          localhost:49849         TIME_WAIT   -
    tcp        0      0 localhost:mysql         localhost:43638         ESTABLISHED 1052/mysqld
    tcp        0      0 localhost:45382         localhost:mysql         ESTABLISHED 28046/proxymap
    tcp        0      0 localhost:mysql         localhost:45382         ESTABLISHED 1052/mysqld
    tcp        0      0 localhost:45380         localhost:mysql         ESTABLISHED 28046/proxymap
    tcp        0      0 localhost:mysql         localhost:45381         ESTABLISHED 1052/mysqld
    tcp        0      0 localhost:mysql         localhost:45377         ESTABLISHED 1052/mysqld
    tcp        0      0 localhost:45381         localhost:mysql         ESTABLISHED 28046/proxymap
    tcp        0      0 localhost:43535         localhost:mysql         ESTABLISHED 23762/amavisd (ch10
    tcp        0      0 localhost:45377         localhost:mysql         ESTABLISHED 28046/proxymap
    tcp        0      0 localhost:mysql         localhost:43535         ESTABLISHED 1052/mysqld
    tcp        0      0 localhost:47330         localhost:10025         TIME_WAIT   -
    tcp        0      0 localhost:mysql         localhost:45380         ESTABLISHED 1052/mysqld
    tcp        0    748 server1.mydomain2.dk:ssh  192.168.1.11:60220      ESTABLISHED 2165/sshd: administ
    tcp        0      0 localhost:43638         localhost:mysql         ESTABLISHED 24001/amavisd (ch9-
    tcp6       0      0 [::]:pop3               [::]:*                  LISTEN      2017/couriertcpd
    tcp6       0      0 [::]:imap2              [::]:*                  LISTEN      1967/couriertcpd
    tcp6       0      0 [::]:ftp                [::]:*                  LISTEN      11946/pure-ftpd (SE
    tcp6       0      0 [::]:domain             [::]:*                  LISTEN      1039/named
    tcp6       0      0 [::]:ssh                [::]:*                  LISTEN      824/sshd
    tcp6       0      0 [::]:smtp               [::]:*                  LISTEN      2156/master
    tcp6       0      0 localhost:953           [::]:*                  LISTEN      1039/named
    tcp6       0      0 [::]:imaps              [::]:*                  LISTEN      1995/couriertcpd
    tcp6       0      0 [::]:pop3s              [::]:*                  LISTEN      2045/couriertcpd
    tcp6       0      0 localhost:33431         localhost:ftp           TIME_WAIT   -
    tcp6       0      0 localhost:33439         localhost:ftp           TIME_WAIT   -
    You have new mail in /var/mail/root
    root@server1:/home/administrator#
    
    
    iptables -L
    Code:
    root@server1:/home/administrator# iptables -L
    Chain INPUT (policy DROP)
    target     prot opt source               destination
    fail2ban-ssh  tcp  --  anywhere             anywhere             multiport dports ssh
    DROP       tcp  --  anywhere             127.0.0.0/8
    ACCEPT     all  --  anywhere             anywhere             state RELATED,ESTABLISHED
    ACCEPT     all  --  anywhere             anywhere
    DROP       all  --  base-address.mcast.net/4  anywhere
    PUB_IN     all  --  anywhere             anywhere
    PUB_IN     all  --  anywhere             anywhere
    PUB_IN     all  --  anywhere             anywhere
    PUB_IN     all  --  anywhere             anywhere
    PUB_IN     all  --  anywhere             anywhere
    DROP       all  --  anywhere             anywhere
    
    Chain FORWARD (policy DROP)
    target     prot opt source               destination
    ACCEPT     all  --  anywhere             anywhere             state RELATED,ESTABLISHED
    DROP       all  --  anywhere             anywhere
    
    Chain OUTPUT (policy ACCEPT)
    target     prot opt source               destination
    PUB_OUT    all  --  anywhere             anywhere
    PUB_OUT    all  --  anywhere             anywhere
    PUB_OUT    all  --  anywhere             anywhere
    PUB_OUT    all  --  anywhere             anywhere
    PUB_OUT    all  --  anywhere             anywhere
    
    Chain INT_IN (0 references)
    target     prot opt source               destination
    ACCEPT     icmp --  anywhere             anywhere
    DROP       all  --  anywhere             anywhere
    
    Chain INT_OUT (0 references)
    target     prot opt source               destination
    ACCEPT     icmp --  anywhere             anywhere
    ACCEPT     all  --  anywhere             anywhere
    
    Chain PAROLE (16 references)
    target     prot opt source               destination
    ACCEPT     all  --  anywhere             anywhere
    
    Chain PUB_IN (5 references)
    target     prot opt source               destination
    ACCEPT     icmp --  anywhere             anywhere             icmp destination-unreachable
    ACCEPT     icmp --  anywhere             anywhere             icmp echo-reply
    ACCEPT     icmp --  anywhere             anywhere             icmp time-exceeded
    ACCEPT     icmp --  anywhere             anywhere             icmp echo-request
    PAROLE     tcp  --  anywhere             anywhere             tcp dpt:ftp-data
    PAROLE     tcp  --  anywhere             anywhere             tcp dpt:ftp
    PAROLE     tcp  --  anywhere             anywhere             tcp dpt:ssh
    PAROLE     tcp  --  anywhere             anywhere             tcp dpt:smtp
    PAROLE     tcp  --  anywhere             anywhere             tcp dpt:domain
    PAROLE     tcp  --  anywhere             anywhere             tcp dpt:http
    PAROLE     tcp  --  anywhere             anywhere             tcp dpt:pop3
    PAROLE     tcp  --  anywhere             anywhere             tcp dpt:imap2
    PAROLE     tcp  --  anywhere             anywhere             tcp dpt:https
    PAROLE     tcp  --  anywhere             anywhere             tcp dpt:imaps
    PAROLE     tcp  --  anywhere             anywhere             tcp dpt:pop3s
    PAROLE     tcp  --  anywhere             anywhere             tcp dpt:mysql
    PAROLE     tcp  --  anywhere             anywhere             tcp dpt:http-alt
    PAROLE     tcp  --  anywhere             anywhere             tcp dpt:tproxy
    PAROLE     tcp  --  anywhere             anywhere             tcp dpt:8082
    PAROLE     tcp  --  anywhere             anywhere             tcp dpt:webmin
    ACCEPT     udp  --  anywhere             anywhere             udp dpt:domain
    ACCEPT     udp  --  anywhere             anywhere             udp dpt:mysql
    DROP       icmp --  anywhere             anywhere
    DROP       all  --  anywhere             anywhere
    
    Chain PUB_OUT (5 references)
    target     prot opt source               destination
    ACCEPT     all  --  anywhere             anywhere
    
    Chain fail2ban-ssh (1 references)
    target     prot opt source               destination
    RETURN     all  --  anywhere             anywhere
    You have new mail in /var/mail/root
    root@server1:/home/administrator#
    
    
    There is one thing I think I need to inform you about. I get this "error" in "System > Server Config > Mail":

    Please specify valid RBL hostnames."

    Its just that in the manual we are told only to use RBL if:

    Relayhost: If you want to relay outgoing mails through another mailserver (for example, because your
    server is on a dynamic IP and therefore blacklisted)


    This is not the case!?!


    Looking forward to hear from you

    Kind Regards,
    Dan
     
    Last edited: Apr 15, 2013
  4. danhansen@denmark

    danhansen@denmark HowtoForge Supporter

    warning: hostname localhost does not resolve to address ::1: No address associated wi

    ---------------------------------------------------------------------------------------------
    Internet Service Information:
    Internet Line/Used only for Internet-Servers.
    Static/Fixed public IP
    All ports opened in router --> "ispserverip"
    Primary nameserver --> ns1.mynameserver.tld
    Secondary nameserver --> ns2.somedanishdomainservice.tld

    System Information:
    Ubuntu Server 12.04 (upgraded - do-release-upgrade)
    ISPconfig 3 v.3.0.5.2
    Single Server Setup (running primary nameserver)
    Tutorial: The Perfect Server - ISPConfig3 - Ubuntu Server 10.04
    Downloaded Manual for ISPConfig3 by Falko Timme
    ---------------------------------------------------------------------------------------------


    "warning: hostname localhost does not resolve to address ::1: No address associated with hostname":

    This problem has been solved! I upgraded from Ubuntu Server 10.04 --> 12.04. In "/etc/hosts" some changed was made during this upgrade. Comment out these changes and the system will work again - I will insert the fix beneath so that other may benefit of this fix:

    127.0.0.1 localhost
    192.168.1.200 server1.mydomain.dk server1


    # The following lines are desirable for IPv6 capable hosts (Comment out!)
    #::1 localhost ip6-localhost ip6-loopback (Comment out!)
    #fe00::0 ip6-localnet (Comment out!)
    #ff00::0 ip6-mcastprefix (Comment out!)
    #ff02::1 ip6-allnodes (Comment out!)
    #ff02::2 ip6-allrouters (Comment out!)



    But, still I'm not receiving mail from outside. I'm able to send mail from one client mailbox to another (on the same ispserver) - and from a client mailbox to an outside email such as gmail.com. In the mail-log I cant se the mailserver receive the mail or even try to handle the mail. I can't solve the problem, but I think it may be because of DNS problems! I will insert my DNS records for the domain beneath - maybe you can tell me what's wrong?
    As a test I created the a "MX-Backup" which in some cases is the solution my ISP tell me! No change at all!:

    (mydomaind.tld) mail.(mydomaind.tld) 10
    (mydomaind.tld) backup-mx.post.tele.dk 20



    DNS-records for my domain "mydomain.dk":

    A mydomain.dk. 188.182.188.xx 0 3600
    A mail 188.182.188.xx 0 3600
    A ns1 188.182.188.xx 0 3600
    A server1 188.182.188.xx 0 3600
    A www 188.182.188.xx 0 3600
    MX mydomain.dk. mail.mydomain.dk. 10 3600
    MX mydomain.dk. backup-mx.post.tele.dk. 20 3600
    NS mydomain.dk. ns1.mydomain.dk. 0 3600
    NS mydomain.dk. ns2.gratisdns.dk. 0 3600


    The content of: "/etc/postfix/main.cf"
    root@server1:/home/administrator# vi /etc/postfix/main.cf
    # See /usr/share/postfix/main.cf.dist for a commented, more complete version

    stname = server1.mydomain.dk
    "/etc/postfix/main.cf" 71L, 3373C



    Content of "/etc/resolv.conf:

    which I think looks funny. Nameservers, should be 8.8.8.8 8.8.4.4 or is this different here? Domain "home"?? Why, wasn't the hostname server1?

    # Dynamic resolv.conf(5) file for glibc resolver(3) generated by resolvconf(8)
    # DO NOT EDIT THIS FILE BY HAND -- YOUR CHANGES WILL BE OVERWRITTEN
    nameserver 127.0.0.1
    nameserver 192.168.1.1
    domain home
    search home



    Or maybe this:
    "ISPserver > System > Server Config > Mail"

    ERROR
    Please specify valid RBL hostnames.



    netstat -tap and iptables -L
    Code:
    
    netstat -tap:
    
    root@server1:/home/administrator# netstat -tap
    Active Internet connections (servers and established)
    Proto Recv-Q Send-Q Local Address           Foreign Address         State       PID/Program name
    tcp        0      0 localhost:10024         *:*                     LISTEN      1189/amavisd (maste
    tcp        0      0 localhost:10025         *:*                     LISTEN      2227/master
    tcp        0      0 *:mysql                 *:*                     LISTEN      1042/mysqld
    tcp        0      0 localhost:spamd         *:*                     LISTEN      1295/spamd.pid
    tcp        0      0 *:http-alt              *:*                     LISTEN      2352/apache2
    tcp        0      0 *:http                  *:*                     LISTEN      2352/apache2
    tcp        0      0 *:tproxy                *:*                     LISTEN      2352/apache2
    tcp        0      0 *:8082                  *:*                     LISTEN      2352/apache2
    tcp        0      0 *:ftp                   *:*                     LISTEN      2249/pure-ftpd (SER
    tcp        0      0 server1.mydomain.:domain *:*                     LISTEN      1038/named
    tcp        0      0 localhost:domain        *:*                     LISTEN      1038/named
    tcp        0      0 *:ssh                   *:*                     LISTEN      819/sshd
    tcp        0      0 *:smtp                  *:*                     LISTEN      2227/master
    tcp        0      0 localhost:953           *:*                     LISTEN      1038/named
    tcp        0      0 *:https                 *:*                     LISTEN      2352/apache2
    tcp        0      0 localhost:50426         localhost:mysql         ESTABLISHED 10975/amavisd (ch13
    tcp        0      0 localhost:33815         localhost:ftp           TIME_WAIT   -
    tcp        0      0 localhost:mysql         localhost:50426         ESTABLISHED 1042/mysqld
    tcp        0      0 server1.mydomain.dk:http 192.168.1.100:38904     TIME_WAIT   -
    tcp        0      0 server1.mydomain:ssh  192.168.1.100:42735     ESTABLISHED 3971/sshd: administ
    tcp        0      0 localhost:50343         localhost:mysql         ESTABLISHED 10761/amavisd (ch14
    tcp        0    464 server1.mydomain.dk:ssh  192.168.1.14:3228       ESTABLISHED 13271/sshd: adminis
    tcp        0      0 localhost:mysql         localhost:50343         ESTABLISHED 1042/mysqld
    tcp        0      0 localhost:http          localhost:48214         TIME_WAIT   -
    tcp6       0      0 [::]:pop3               [::]:*                  LISTEN      2088/couriertcpd
    tcp6       0      0 [::]:imap2              [::]:*                  LISTEN      2038/couriertcpd
    tcp6       0      0 [::]:ftp                [::]:*                  LISTEN      2249/pure-ftpd (SER
    tcp6       0      0 [::]:domain             [::]:*                  LISTEN      1038/named
    tcp6       0      0 [::]:ssh                [::]:*                  LISTEN      819/sshd
    tcp6       0      0 [::]:smtp               [::]:*                  LISTEN      2227/master
    tcp6       0      0 ::1%3373952:953         [::]:*                  LISTEN      1038/named
    tcp6       0      0 [::]:imaps              [::]:*                  LISTEN      2066/couriertcpd
    tcp6       0      0 [::]:pop3s              [::]:*                  LISTEN      2116/couriertcpd
    You have new mail in /var/mail/root
    root@server1:/home/administrator#
    
    
    iptables -L:
    
    root@server1:/home/administrator# iptables -L
    Chain INPUT (policy ACCEPT)
    target     prot opt source               destination
    
    Chain FORWARD (policy ACCEPT)
    target     prot opt source               destination
    
    Chain OUTPUT (policy ACCEPT)
    target     prot opt source               destination
    
    Chain fail2ban-ssh (0 references)
    target     prot opt source               destination
    RETURN     all  --  anywhere             anywhere
    root@server1:/home/administrator#
    
    

    I can't find anymore to list - I'm completely lost. Had technical support from ISP almost 4 hours and the line is ok. Nameserver, Webserver, FTPserver, Database - everything works but the Mailserver.
    Maybe a third re-installation of the ISPserver will make the mail work as well. Please, if you have any idea of what is wrong, please help me. :eek:

    Kind Regards,
    Dan
     
    Last edited: Apr 17, 2013
  5. till

    till Super Moderator

    Then your problem is not on your ispconfig server and a reinstall will not help.

    Either your dns record is not correct or you have a firewall or router in front of the server which blocks port 25 or the ISP which you use to connect the server with the internet blocks port 25.
     
  6. danhansen@denmark

    danhansen@denmark HowtoForge Supporter

    You are quite right!

    Hi Till,


    Thanks a lot! You were quite right! Today at 13.18 the filter/port 25 was removed permanent! They promised me an open port 25 when I ordered the line, but didn't do it properly! After some discussion they made the permanent change to the line

    Thanks Till...

    But, the mail worked for 5 minuts and the it stopped working again, and bounced the mail. But now I can see it arrive in the mail-log.. Will you take a look at this too please?:

    I have posted a new post - it's a kind of "new problem" so this is the right thing to do I guess ;)


    PS! And many thanks to "MarkC" as well, who has been quite helpfull... Thanks you for that Mark..
     

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