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Hello i have this longterm issue which im unable to solve, i think this is quite simple issue, i hope you may know the cause It is on CentOS Redhat ...
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  1. #1
    Linux User postcd's Avatar
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    Apr 2011
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    Emails sent from linux server are rejected by recipient


    Hello i have this longterm issue which im unable to solve, i think this is quite simple issue, i hope you may know the cause

    It is on CentOS Redhat server with qmail installed.

    [root@*** /]# service qmail status
    [root@*** /]# service qmail start
    Starting Qmail:
    [root@*** /]# ps aux | grep mail
    qmails 1688 0.0 0.0 2020 488 ? S 10:01 0:00 qmail-send
    qmaill 1694 0.0 0.0 1768 480 ? S 10:01 0:00 splogger qmail
    root 1695 0.0 0.0 1780 372 ? S 10:01 0:00 qmail-lspawn |preline procmail
    qmailr 1696 0.0 0.0 1776 372 ? S 10:01 0:00 qmail-rspawn
    qmailq 1697 0.0 0.0 1760 352 ? S 10:01 0:00 qmail-clean
    root 3137 0.0 0.0 1948 508 pts/0 R+ 10:11 0:00 grep mail
    [root@*** /]# tail -n 100 /var/log/maillog
    Apr 4 18:33:11 test sendmail[1526]: alias database /etc/aliases rebuilt by root
    Apr 4 18:33:11 test sendmail[1526]: /etc/aliases: 76 aliases, longest 10 bytes, 765 bytes total
    Apr 4 18:33:11 test sendmail[1531]: starting daemon (8.13.: SMTP+queueing@01:00:00
    Apr 4 18:33:11 test sm-msp-queue[1539]: starting daemon (8.13.: queueing@01:00:00


    I tried to log the email account in webmail
    I see all the messages I tried to send like:
    ******SPAM****** te
    Connected to **remoteiphere** but sender was rejected.
    Remote host said: 550 SC-001 (SNT0-MC3-F45) Unfortunately, messages from **myserverip** weren't sent. Please contact your Internet service provider since part of their network is on our block list. You can also refer your provider to Sign In.

    Full message:
    Hi. This is the qmail-send program at mail.vpshosteddomain.com.
    I'm afraid I wasn't able to deliver your message to the following addresses.
    This is a permanent error; I've given up. Sorry it didn't work out.

    <mymail@hotmail.com>:
    Connected to 65.54.188.72 but sender was rejected.
    Remote host said: 550 SC-001 (BAY0-MC1-F59) Unfortunately, messages from MYSERVERIP weren't sent. Please contact your Internet service provider since part of their network is on our block list. You can also refer your provider to Troubleshooting.

    --- Below this line is a copy of the message.

    Return-Path: <myemail@mydomain.com>
    Received: (qmail 3402 invoked by uid 0); 7 Mar 2014 15:17:45 -0000
    Received: from unknown (HELO MYSERVERIP) (myemail@mydomain.com@MYSERVERIP)
    by MYSERVERIP with ESMTPA; 7 Mar 2014 15:17:45 -0000
    Date: Fri, 7 Mar 2014 10:17:45 -0500
    Return-Path: <myemail@mydomain.com>
    To: mymail@hotmail.com
    From: MyName <myemail@mydomain.com>
    Subject: Password recovery request
    Message-ID: <*******@MYSERVERIP>
    X-Priority: 3
    X-Mailer: PHPMailer 5.2.4 (https://github.com/Synchro/PHPMailer/)
    MIME-Version: 1.0
    Content-Transfer-Encoding: 8bit
    Content-Type: text/plain; charset=UTF-8

    You have recently requested a password recovery on mysite.com
    To request a new password for your account visit the following page:
    http://mysite.com/?key=**
    If you have not requested this email, please ignore it.

    The sender email account exist on a VPS.

    I checked VPS ip against mail blacklists and its NOT listed except one v4bl.org.

    Another message:
    User and password not set, continuing without authentication.
    194.153.145.51 does not like recipient.
    Remote host said: 550 5.1.1 <*@abv.bg>: Recipient address rejected: User unknown in virtual mailbox table
    Giving up on 194.153.145.51.
    Please anyone of You have an idea how can i fix this issue?
    "Avoid the Gates of Hell. Use Linux affordable VPS."

  2. #2
    Linux Guru Rubberman's Avatar
    Join Date
    Apr 2009
    Location
    I can be found either 40 miles west of Chicago, in Chicago, or in a galaxy far, far away.
    Posts
    11,691
    Just a guess...

    Your server is not internet accessible (behind your router/firewall), so the receivers cannot verify that you are a "real" mail server. You might be able to fix this by creating a hole/tunnel through your firewall for the necessary port(s).
    Sometimes, real fast is almost as good as real time.
    Just remember, Semper Gumbi - always be flexible!

  3. #3
    Linux Engineer docbop's Avatar
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    Nov 2009
    Location
    Woodshed, CA
    Posts
    948
    Please contact your Internet service provider since part of their network is on our block list.
    I'd say that is your problem.

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