Results 1 to 5 of 5

Thread: Zimbra: Client Host Rejected

  1. #1
    leebrent is offline Active Member
    Join Date
    Jan 2007
    Location
    Nanaimo, BC.
    Posts
    31
    Rep Power
    8

    Default Zimbra: Client Host Rejected

    Hello,

    I have the following version of Zimbra running on FC7:
    zcs-5.0.6_GA_2313.F7.20080522100316

    I run a DNS test on my domain itas.ca at the following URL:

    DNS Quick Check - DNS Report Tool, Test your DNS delegation, DNS Servers, Mail and Web Servers, Network Admins, Webmasters, Hosting

    And the mail error that I am getting has my attention:

    <<< 220 mail.itas.ca ESMTP Postfix
    >>> HELO DNS Quick Check - DNS Report Tool, Test your DNS delegation, DNS Servers, Mail and Web Servers, Network Admins, Webmasters, Hosting
    <<< 250 mail.itas.ca
    >>> MAIL FROM: <dnscheck@uniplace.com>
    <<< 250 2.1.0 Ok
    >>> RCPT TO: <postmaster@itas.ca>
    <<< 450 4.7.1 Client host rejected: cannot find your hostname, [195.60.98.252]
    >>> RCPT TO: <root@itas.ca>
    <<< 450 4.7.1 Client host rejected: cannot find your hostname, [195.60.98.252]
    >>> RCPT TO: <info@itas.ca>
    <<< 450 4.7.1 Client host rejected: cannot find your hostname, [195.60.98.252]
    >>> RCPT TO: <webmaster@itas.ca>
    <<< 550 5.1.1 <webmaster@itas.ca>: Recipient address rejected: itas.ca
    Probably mail server does not accept mail for itas.ca (received status 550)

    I was under the impression that all inbound mail was getting to this server until a user indicated that one of her friends was getting a bounce when emailing her.

    The information that I have from the bounce is as follows:

    Diagnostic-Code: X-BorderWare-Security-Platform; host
    mail.itas.ca[142.25.97.202] said: 450 4.7.1 <MXOttawa.csc-scc.gc.ca>: Helo
    command rejected: Host not found (in reply to RCPT TO command)
    Will-Retry-Until: Mon, 2 Jun 2008 20:49:37 -0400 (EDT)

    I have tired turning off the following, and still receive this error:

    Hostname in greeting violates RFC (reject_invalid_hostname)
    Client must greet with a fully qualified hostname (reject_non_fqdn_hostname)
    Client's IP address (reject_unknown_client)
    Hostname in greeting (reject_unknown_hostname)
    Sender's domain (reject_unknown_sender_domain)'

    Can someone offer me a solution for this problem, and possibly a way to test it without having to contact the user from csc-scc.gc.ca?

  2. #2
    phoenix is online now Zimbra Consultant & Moderator
    Join Date
    Sep 2005
    Location
    Vannes, France
    Posts
    23,470
    Rep Power
    56

    Default

    Is this a new install or has the server been working for a while? Is it behind a NAT router or firewall? Run the following (on the zimbra server):

    Code:
    cat /etc/hosts 
    host `hostname`  <-- type as-is and use backticks not single quotes
    dig yourdomain.com mx
    dig yourdomain.com any
    and post the results.
    Regards


    Bill


    Acompli: A new adventure for Co-Founder KevinH.

  3. #3
    leebrent is offline Active Member
    Join Date
    Jan 2007
    Location
    Nanaimo, BC.
    Posts
    31
    Rep Power
    8

    Default

    Code:
    [root@mail zcs-5.0.6_GA_2313.F7.20080522100316]# cat /etc/hosts
    # Do not remove the following line, or various programs
    # that require network functionality will fail.
    127.0.0.1       localhost.localdomain   localhost
    ::1     localhost6.localdomain6 localhost6
    142.25.97.202   mail.itas.ca    mail
    Code:
    [root@mail zcs-5.0.6_GA_2313.F7.20080522100316]# host `hostname`
    mail.itas.ca has address 142.25.97.202
    Code:
    [root@mail zcs-5.0.6_GA_2313.F7.20080522100316]# dig itas.ca mx
    
    ; <<>> DiG 9.4.2 <<>> itas.ca mx
    ;; global options:  printcmd
    ;; Got answer:
    ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 55838
    ;; flags: qr aa rd ra; QUERY: 1, ANSWER: 1, AUTHORITY: 0, ADDITIONAL: 1
    
    ;; QUESTION SECTION:
    ;itas.ca.                       IN      MX
    
    ;; ANSWER SECTION:
    itas.ca.                3600    IN      MX      100 mail.itas.ca.
    
    ;; ADDITIONAL SECTION:
    mail.itas.ca.           3600    IN      A       142.25.97.202
    
    ;; Query time: 3 msec
    ;; SERVER: 142.25.115.1#53(142.25.115.1)
    ;; WHEN: Thu May 29 09:05:33 2008
    ;; MSG SIZE  rcvd: 62
    Code:
    [root@mail zcs-5.0.6_GA_2313.F7.20080522100316]# dig itas.ca any
    
    ; <<>> DiG 9.4.2 <<>> itas.ca any
    ;; global options:  printcmd
    ;; Got answer:
    ;; ->>HEADER<<- opcode: QUERY, status: NOERROR, id: 29732
    ;; flags: qr aa rd ra; QUERY: 1, ANSWER: 7, AUTHORITY: 0, ADDITIONAL: 4
    
    ;; QUESTION SECTION:
    ;itas.ca.                       IN      ANY
    
    ;; ANSWER SECTION:
    itas.ca.                3600    IN      A       142.25.97.200
    itas.ca.                3600    IN      NS      titan.itas.ca.
    itas.ca.                3600    IN      NS      quadra.mala.bc.ca.
    itas.ca.                3600    IN      NS      triangle.mala.bc.ca.
    itas.ca.                3600    IN      SOA     titan.itas.ca. mail.itas.ca. 200
    8052902 3600 3600 604800 86400
    itas.ca.                3600    IN      MX      100 mail.itas.ca.
    itas.ca.                3600    IN      TXT     "v=spf1 mx ptr a:zimbra.itas.ca.
     a:titan.itas.ca. a:europa.itas.ca. a:callisto.itas.ca. a:help.itas.ca. a:pan.it
    as.ca. a:mail.itas.ca. include:mala.bc.ca include:europa.itas.ca. include:titan.
    itas.ca. include:callisto.itas.ca. include:pan.itas.ca. ~all"
    
    ;; ADDITIONAL SECTION:
    titan.itas.ca.          3600    IN      A       142.25.97.200
    quadra.mala.bc.ca.      43200   IN      A       142.25.115.12
    triangle.mala.bc.ca.    43200   IN      A       142.25.115.1
    mail.itas.ca.           3600    IN      A       142.25.97.202
    
    ;; Query time: 4 msec
    ;; SERVER: 142.25.115.1#53(142.25.115.1)
    ;; WHEN: Thu May 29 09:05:53 2008
    ;; MSG SIZE  rcvd: 498
    
    [root@mail zcs-5.0.6_GA_2313.F7.20080522100316]#
    Last edited by phoenix; 05-29-2008 at 09:27 AM.

  4. #4
    phoenix is online now Zimbra Consultant & Moderator
    Join Date
    Sep 2005
    Location
    Vannes, France
    Posts
    23,470
    Rep Power
    56

    Default

    Is the only reason (apart from the bounced message) you think this is not working is because of the results of your DNS tests earlier? I have just done the same test on your server and the results were OK.

    I'd suggest you check in the log files and see what errors are there and what reason was given for the bounce you mentioned earlier.
    Regards


    Bill


    Acompli: A new adventure for Co-Founder KevinH.

  5. #5
    leebrent is offline Active Member
    Join Date
    Jan 2007
    Location
    Nanaimo, BC.
    Posts
    31
    Rep Power
    8

    Default

    This is what I found in the logs... The odd thing is that this person can email hotmail, but the mail does not make it to my server...

    TP helo=<MXOttawa.csc-scc.gc.ca>
    May 29 10:34:40 mail postfix/smtpd[29169]: NOQUEUE: reject: RCPT from mail.csc-s
    cc.gc.ca[198.103.109.161]: 450 4.7.1 <MXOttawa.csc-scc.gc.ca>: Helo command reje
    cted: Host not found; from=<HeadDA@CSC-SCC.GC.CA> to=<betheak@itas.ca> proto=ESM
    TP helo=<MXOttawa.csc-scc.gc.ca>

Thread Information

Users Browsing this Thread

There are currently 1 users browsing this thread. (0 members and 1 guests)

Similar Threads

  1. slapd message error
    By smoke in forum Administrators
    Replies: 7
    Last Post: 04-27-2008, 03:23 PM
  2. [SOLVED] Spam Being Sent Thru Server - Help Needed!
    By msf004 in forum Administrators
    Replies: 22
    Last Post: 03-14-2008, 11:11 PM
  3. zmtlsctl give LDAP error
    By sourcehound in forum Administrators
    Replies: 5
    Last Post: 03-11-2007, 03:48 PM
  4. Replies: 16
    Last Post: 09-07-2006, 06:39 AM
  5. Fedora Core 3, Clean Install - Not working!
    By pcjackson in forum Installation
    Replies: 17
    Last Post: 03-05-2006, 07:38 PM

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •