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550 Executable files are not allowed in compressed files

Discussion in 'E-mail Discussions' started by Pyone, Apr 12, 2016.

  1. Pyone

    Pyone Member

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    Hello,

    Due to user's requirement, I have to send automated emails with .zip file attachments to a number of clients.
    It was working properly until a few days ago.
    All outgoing emails with .zip file attachments which are automatically sent by PHP script are not delivered to recipients.
    And I got the returning email with the error "SMTP error from remote mail server after end of data:550 Executable files are not allowed in compressed files.".

    Here's is the part of the returning email ;
    Code:
    This message was created automatically by mail delivery software.
    
    A message that you sent could not be delivered to one or more of its
    recipients. This is a permanent error. The following address(es) failed:
    
      [EMAIL]my-address@gmail.com[/EMAIL]
      host 2374.smtp.antispamcloud.com [94.75.244.183]
      SMTP error from remote mail server after end of data:
      550 Executable files are not allowed in compressed files.
    
    ------ This is a copy of the message, including all the headers. ------
    
    Return-path: <user@cx1.example.net>
    Received: from user by cx1.example.net with local (Exim 4.85_1)
       (envelope-from <user@cx1.example.net>)
       id 1aqAZt-000008-QZ; Wed, 13 Apr 2016 10:30:50 +0800
    To: [EMAIL]my-address@gmail.com[/EMAIL]
    Subject: Email-subject
    MIME-Version: 1.0
    Content-Type: multipart/mixed;
    boundary="==Multipart_Boundary_x4f4b65625e5ee2220745d0c732d81cb2x"
    From: Sender <sender@my-domain.com>
    Reply-To: [EMAIL]sender@my-domain.com[/EMAIL]
    Message-Id: <E1aqAZt-000008-QZ@cx1.example.net>
    Date: Wed, 13 Apr 2016 10:30:49 +0800
    X-oryonnetworks-MailScanner-Information: Please contact the ISP for more information
    X-oryonnetworks-MailScanner-ID: 1aqAZt-000008-QZ
    X-oryonnetworks-MailScanner: Not scanned: please contact your Internet E-Mail Service Provider for details
    X-oryonnetworks-MailScanner-SpamCheck:
    X-oryonnetworks-MailScanner-From: [EMAIL]user@cx1.example.net[/EMAIL]
    X-Spam-Status: No
    
    This is a multi-part message in MIME format.
    
    --==Multipart_Boundary_x4f4b65625e5ee2220745d0c732d81cb2x
    Content-Type: text/html; charset="utf-8"
    Content-Transfer-Encoding: 7bit
    
    Please help me fix this problem.
    Thanks in advance.
     
    #1 Pyone, Apr 12, 2016
    Last edited by a moderator: Apr 13, 2016
  2. ssfred

    ssfred Well-Known Member

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    Hello

    From the mail header, the recipient is a gmail id and the bounce message indicates that the mail was rejected by the recipient server. As a security policy gmail blocks attachments containing executables, even though they are compressed. You may refer their KB Some file types are blocked - Gmail Help for further reference.
     
  3. cPanelMichael

    cPanelMichael Forums Analyst
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