550 Executable files are not allowed in compressed files

Pyone

• April 12, 2016 14:15

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 ;
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: 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: Received: from user by cx1.example.net with local (Exim 4.85_1) (envelope-from ) id 1aqAZt-000008-QZ; Wed, 13 Apr 2016 10:30:50 +0800 To: my-address@gmail.com[/EMAIL] Subject: Email-subject MIME-Version: 1.0 Content-Type: multipart/mixed; boundary="==Multipart_Boundary_x4f4b65625e5ee2220745d0c732d81cb2x" From: Sender Reply-To: sender@my-domain.com[/EMAIL] Message-Id: 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: 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.

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  ssfred

  • April 13, 2016 05:08

  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.

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  cPanelMichael

  • April 13, 2016 18:42

  Hello :) Yes, as mentioned, it's the recipient mail server that's blocking the message: Some file types are blocked - Gmail Help Thank you.

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