[Sysadmin] Banned Attachment contained in mail addressed to you

[Content-filter at gairezi.yoafrica.com]

Banned Attachment Alert

Our content checker found 1 banned names: .url,CP00005109956.url
in an email addressed to you claiming to be from <Sean at yoafrica.com>.

Please contact your system administrator for further details.

SpamTitan ID: QozcRocx3KnM

For your reference, here are the headers from the email:
--------------------------- BEGIN HEADERS ---------------------------
Received: from gairezi.yoafrica.com (localhost [127.0.0.1])
	by gairezi.yoafrica.com (Postfix) with ESMTP id 0E0102E892D
	for <postmaster at yoafrica.com>; Tue, 13 Mar 2018 13:01:06 +0200 (CAT)
Received: from static.vnpt.vn (unknown [113.163.205.52])
	by gairezi.yoafrica.com (Postfix) with ESMTP id 478492E892B
	for <postmaster at yoafrica.com>; Tue, 13 Mar 2018 13:01:05 +0200 (CAT)
Date: Tue, 13 Mar 2018 17:58:53 +0700
Subject: CP00009299
Message-ID: <ABB16C8EE4A4636F4DA849396D9589FF15613BB13E9D84B0285B3D6457.930838522308301 at email.android.com>
Importance: normal
From: "Sean" <Sean at yoafrica.com>
To: postmaster at yoafrica.com
MIME-Version: 1.0
Content-Type: multipart/mixed; boundary="--_com.android.email_762754473548454"
---------------------------  END HEADERS  ---------------------------