Mail is not delivering to a specific address

Discussion in 'Email Service Support Forums' started by gtuhin, Nov 7, 2014.

  1. gtuhin

    gtuhin New Email

    Joined:
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    Dear Sir,

    One of our email user's mail is not delivering to a specific address. Please find below detail.

    from address: jabed@trigonindustries.com
    to address: ranjit@usfcollections.com

    in return mail it is telling "550 5.7.1 Message rejected due to content restrictions".

    Domain name and IP address is listed in LASHBACK. Is the reason for not delivering the mail? Please see the below.

    ===============
    [root@mail ~]# telnet smtpedge01.chinookcommunications.com 25
    Trying 173.225.22.201...
    Connected to smtpedge01.chinookcommunications.com (173.225.22.201).
    Escape character is '^]'.
    220 smtpedge.partnerhosted.com Microsoft ESMTP MAIL Service ready at Thu, 6 Nov 2014 22:15:00 -0800
    ehlo usfcollections.com
    250-smtpedge.partnerhosted.com Hello [203.112.76.146]
    250-SIZE 31457280
    250-PIPELINING
    250-DSN
    250-ENHANCEDSTATUSCODES
    250-STARTTLS
    250-X-ANONYMOUSTLS
    250-AUTH
    250-X-EXPS NTLM
    250-8BITMIME
    250-BINARYMIME
    250-CHUNKING
    250-XEXCH50
    250 XSHADOW
    mail from: gtuhin@gmail.com
    250 2.1.0 Sender OK
    rcpt to: ranjit@usfcollections.com
    250 2.1.5 Recipient OK
    data
    354 Start mail input; end with <CRLF>.<CRLF>
    This is a test mail. Plz just ignore.
    .
    250 2.6.0 <9bbbcf6b-95c5-4cce-8000-eb4f12bcefc0@Xedge01.citservers.local> [InternalId=5853238] Queued mail for delivery
    quit
    221 2.0.0 Service closing transmission channel
    Connection closed by foreign host.
    [root@mail ~]#
    [root@mail ~]#


    [root@mail ~]# telnet smtpedge01.chinookcommunications.com 25
    Trying 173.225.22.201...
    Connected to smtpedge01.chinookcommunications.com (173.225.22.201).
    Escape character is '^]'.
    220 smtpedge.partnerhosted.com Microsoft ESMTP MAIL Service ready at Thu, 6 Nov 2014 22:16:44 -0800
    ehlo usfcollections.com
    250-smtpedge.partnerhosted.com Hello [203.112.76.146]
    250-SIZE 31457280
    250-PIPELINING
    250-DSN
    250-ENHANCEDSTATUSCODES
    250-STARTTLS
    250-X-ANONYMOUSTLS
    250-AUTH
    250-X-EXPS NTLM
    250-8BITMIME
    250-BINARYMIME
    250-CHUNKING
    250-XEXCH50
    250 XSHADOW
    mail from: jabed@trigonindustries.com
    250 2.1.0 Sender OK
    rcpt to: ranjit@usfcollections.com
    250 2.1.5 Recipient OK
    data
    354 Start mail input; end with <CRLF>.<CRLF>
    This is a test mail. Please just ignore.
    .
    550 5.7.1 Message rejected due to content restrictions
    quit
    221 2.0.0 Service closing transmission channel
    Connection closed by foreign host.
    =========================

    Please suggest what to do?

    Regards,

    Tuhin.
    BD, Dhaka.
     


  2. popowich

    popowich EQ Forum Admin Staff Member

    Joined:
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    Hello,

    The Lashback wold apply to all connections from your mail server, so I doubt that's part of the problem.

    Most likely the receiving mail server blocked email from your domain name or specifically from your email address.

    Try sending from other email addresses in your domain, are all of them blocked or only from jabed@trigonindustries.com?

    Is your outgoing IP address 203.112.76.146? That IP has a terrible sender score:

    https://senderscore.org/lookup.php?lookup=203.112.76.146&validLookup=true

    It appears your domain name and possibly your sending IP address have a terrible reputation.

    Get that mail server and IP cleaned up, and fix anuy other abuse issues leaving your network, create an SPF record, and then once the sender score improves to above 70 try contacting or calling usfcollections.com and asking if there is anything more that can be done so you can email the person in the domain that you are trying to reach.

    You can also try contacting abuse@chinookcommunications.com after your reputation is fixed.
     

  3. gtuhin

    gtuhin New Email

    Joined:
    Nov 7, 2014
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    Thank you very much for your reply. It helped me a lot.

    Thanks.
    Tuhin.
     

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