Email sent to domain being rejected

Discussion in 'Installation/Configuration' started by Lil'Brudder, Oct 22, 2005.

  1. Lil'Brudder

    Lil'Brudder New Member

    When sending email to users on my domain, I get the following returned mail from postfix:

    Code:
    This is the Postfix program at host www.
    
    I'm sorry to have to inform you that your message could not
    be delivered to one or more recipients. It's attached below.
    
    For further assistance, please send mail to <postmaster>
    
    If you do so, please include this problem report. You can
    delete your own text from the attached returned message.
    
    			The Postfix program
    
    <ll_admin@www.www> (expanded from <admin@liquidlightning.com>): Host or domain name not found. 
    Name service error for name=www.www type=A: Host not found
    
    I saw another post where the domain wasn't in the local-host-names file, but here is my local-host-names file:

    Code:
    ###################################
    #
    # ISPConfig local-host-names Configuration File
    #         Version 1.0
    #
    ###################################
    localhost
    www
    localhost.www
    www.liquidlightning.com
    liquidlightning.com
    mail.liquidlightning.com
    SPConfig local-host-names Configuration File
    #### MAKE MANUAL ENTRIES BELOW THIS LINE! ####
    
    Can anyone help me find the problem why my email server thinks the email address admin@liquidlightning.com is ll_admin@www.www ?

    I'm sure it's a hastname problem somewhere as I seem to be struggling with this whole hostname thing (and I thought I finally understood it.)

    Thanks
     
  2. sapient

    sapient New Member

    You may want to manually check your MX records / A records ( I had a few MX problems and had to resolve them by editing the dns records by hand).

    I checked for your domain's mx records and this is what I got from dnsstuff.com

    check etc/bind/pri.liquidlightning.com to see if it is correct
     
  3. Lil'Brudder

    Lil'Brudder New Member

    There is no /etc/bind/

    I guess this could be a problem?

    There is no /etc/bind so I guess there wouldn't be a pri.liquidlightning.com either.

    I thought Bind was running, but now I'm not sure.
     
  4. Lil'Brudder

    Lil'Brudder New Member

    A Record question

    Should my liquidlightning.com A record be my external IP address, or my internal IP address?

    I'm running it behind a router with all the necessary ports forwarded.... I thought I had everything configured correctly because it's all working right... I can create websites/email users/ftp/etc, and all the logins work, ftp works, sending mail works... it's just receiving email that doesn't work.

    Right now my mail A records looks like this:

    Code:
    A Record   
    ----------------------------------- 
      IP-Adresse     Hostname   
      158.91.201.193     mail   
      192.168.1.125     www   
    
    
    MX   
    -----------------------------------
      Mailserver     Hostname   
      liquidlightning.com     mail   
    
    Should my mail A record be an internal IP?
     
  5. sapient

    sapient New Member

    My understanding is this:

    whenever a computer requests a website they goto the nameserver of that site to get the A record for the host www for your site. Then your computer attempts a connection by going to that ip address that was in the A record.

    Thus you would want your nameserver to tell any visitors that your www.liquidlightning.com is at your external ip (so they can actually see it!)

    Same thing goes for the mail, MX records.

    The only time you would want internal records on a nameserver is if that nameserver is acting solely as an internal nameserver for you lan, because your lan can see those local ip's.
     
  6. falko

    falko Super Moderator Howtoforge Staff Moderator HowtoForge Supporter ISPConfig Developer

    Which distribution do you use?

    Your external address.
     
  7. Lil'Brudder

    Lil'Brudder New Member

    Fedora Core 4

    Code:
    Which distribution do you use?
    I'm using Fedora Core 4.

    Also Falko (or anyone else) as per the first post, is there another reason why I get this in the returned email I send to my domain from an outside email address?

    Code:
    <ll_admin@www.www> (expanded from <admin@liquidlightning.com>): Host or domain name not found. 
    Name service error for name=www.www type=A: Host not found
    
    Thanks
     
  8. falko

    falko Super Moderator Howtoforge Staff Moderator HowtoForge Supporter ISPConfig Developer

    On Fedora 4 the zone files are in /var/named/chroot/var/named. There's no directory /etc/bind.

    You have to create an MX record for liquidlightning.com. Currently there's no MX record, as this shows:

    Code:
    server1:~# dig MX liquidlightning.com
    
    ; <<>> DiG 9.2.1 <<>> MX liquidlightning.com
    ;; global options:  printcmd
    ;; Got answer:
    ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 42704
    ;; flags: qr rd ra; QUERY: 1, ANSWER: 0, AUTHORITY: 1, ADDITIONAL: 0
    
    ;; QUESTION SECTION:
    ;liquidlightning.com.           IN      MX
    
    ;; AUTHORITY SECTION:
    liquidlightning.com.    7200    IN      SOA     ns5.zoneedit.com. soacontact.zoneedit.com. 1037464252 14400 7200 950400 7200
    
    ;; Query time: 286 msec
    ;; SERVER: 81.169.163.104#53(81.169.163.104)
    ;; WHEN: Sun Oct 23 12:58:26 2005
    ;; MSG SIZE  rcvd: 97
     
  9. Lil'Brudder

    Lil'Brudder New Member

    Ok, I think I'm starting to understand the problem, but, any suggestions on how to resolve this?

    I checked in the ../named/ folder as you said my domain name would be in, and it was, with lots of info in the file... including an MX line:

    Code:
    mail  MX      10 liquidlightning.com.
    
    liquidlightning.com.      A        158.91.201.193
    mail       A       158.91.201.193
    www       A       192.168.1.125
    ns       A       192.168.1.125
    ns1       A       192.168.1.125
    
    So, as you described in your DiG,

    Code:
    ;; AUTHORITY SECTION:
    liquidlightning.com.    7200    IN      SOA     ns5.zoneedit.com. soacontact.zoneedit.com. 1037464252 14400 7200 950400 7200
    
    ;; Query time: 286 msec
    ;; SERVER: 81.169.163.104#53(81.169.163.104)
    ;; WHEN: Sun Oct 23 12:58:26 2005
    ;; MSG SIZE  rcvd: 97
    
    Before I setup this server, I had to use Zoneedit for my DNS, hence the ns5.zoneedit.com, but I thought ISPConfig was a DNS server as well. I'm using GoDaddy as my registrar, and when I tried to put in ns.liquidlightning.com and ns1.liquidlightning.com as the DNS servers, it said:

    Unavailable error in field Host name1
    Unavailable error in field Host name2


    I'm assuming that if I can get GoDaddy to accept my DNS, my server will be able to resolve all the A/MX/etc records and everything will be fine... is this not right?

    I have port 53 forwarding to the server, is this the correct port?
    Also, I noticed there are 3 other ports open:

    Port 5335 (tcp) is open (unknown)!
    Port 32769 (tcp) is open (unknown)!
    Port 55512 (tcp) is open (unknown)!

    Are these used by ISPConfig? Do I need to have them forwarded in my router also? Or can they be left alone?

    *Edit*
    I just noticed... the IP address is wrong in that Bind file. That's the IP of where the server *will* be... it's on a temporary IP right now. Is that why Godaddy isn't resolveing ns.liquidlightning.com?

    If I change that to the temp IP, would that fix it?
    *Edit*
     
    Last edited: Oct 25, 2005
  10. falko

    falko Super Moderator Howtoforge Staff Moderator HowtoForge Supporter ISPConfig Developer

    Yes, that's right. You have to make your nameservers authoritative for your domains.

    Yes, but it's port 53 TCP and UDP!

    No, these ports aren't used by ISPConfig. I don't know what's running on these ports, so if you don't know this either, you should better close them...

    Hm, I think you should contact the GoDaddy support about this... - or just try. :D
     

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