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		<h1>Hướng dẫn chặn&#x002F;Block Email Blacklist trên Zimbra Email Server với PolicyD</h1>
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			<li>Chủ nhật - 30/05/2021 01:24</li>
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			<p>Hướng dẫn Block Email​​&nbsp;Blacklist trên Zimbra Email Server với PolicyD</p>

<p>Để block email hoặc domain trên internet không cho gửi mail đến hệ thống email trên zimbra có thể sử dụng PolicyD​​&nbsp;để xử lý việc này khá đơn giản và an toàn.</p>

<p>PolicyD sử dụng Mysqlite làm Database để lưu trữ toàn bộ thông tin cấu hình, MysqliteDB là DB vô cùng nhẹ và đơn giản giúp cho hệ thống hoạt động nhẹ nhàng linh hoạt.</p>
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			<img alt="Hướng dẫn chặn&#x002F;Block Email Blacklist trên Zimbra Email Server với PolicyD" src="https://phatthanhdat.com/uploads/news/2021_05/image-20210530122311-1.png" width="460" class="img-thumbnail" />
						<p>
				<em>Hướng dẫn chặn&#x002F;Block Email Blacklist trên Zimbra Email Server với PolicyD</em>
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			<p>Bước 1: Tạo Policy Group</p>

<p>Sau khi truy cập vào web admin policyd port 7780 trên trình duyệt</p>

<p>vào Policies/Groups tạo 1 Group mới​​&nbsp;có tên​​&nbsp;List_Email_Block</p>

<p>&nbsp;</p>

<p><img alt="" height="680" src="https://phatthanhdat.com/uploads/news/2021_05/image-20210530122508-1.png" width="1911" /></p>

<p>Bước 2: Tạo​​&nbsp;member cho Group</p>

<p>Mình add 1 email có tên​​&nbsp;<a href="mailto:spam@domainspam.com" target="_top" title="">spam@domainspam.com</a>​​&nbsp;nếu muốn chặn theo domain chỉ cần tạo 1 member @domainspam.com tương ứng domain cần chặn.</p>

<p><img alt="" height="369" src="https://phatthanhdat.com/uploads/news/2021_05/image-20210530122509-2.png" width="1698" /></p>

<p>kết quả sau khi tạo xong member</p>

<p><img alt="" height="189" src="https://phatthanhdat.com/uploads/news/2021_05/image-20210530122509-3.png" width="1375" /></p>

<p>&nbsp;</p>

<p>Bước 3: Tạo Policy List</p>

<p>Vào Policies/Main chọn add 1 Policy List​​&nbsp;có tên:</p>

<p>Policy_Block_Email_Blacklist</p>

<p><img alt="" height="322" src="https://phatthanhdat.com/uploads/news/2021_05/image-20210530122509-4.png" width="1526" /></p>

<p>Sau đó tạo thêm Member cho Policy List đó như ảnh dưới.</p>

<p><img alt="" height="220" src="https://phatthanhdat.com/uploads/news/2021_05/image-20210530122509-5.png" width="1486" /></p>

<p>Bước 4: Vào Access Control tạo 1 Access Control List</p>

<p>vào Acess​​&nbsp;Control/Configure tạo</p>

<p>Policy_Block_Email_Blacklist</p>

<p><img alt="" height="164" src="https://phatthanhdat.com/uploads/news/2021_05/image-20210530122509-6.png" width="1313" /></p>

<p>Chọn chính xác​​&nbsp;Policy List​​&nbsp;vừa tạo ở bước 3 và xử lý​​&nbsp;Verdict​​&nbsp;là​​&nbsp;REJECT​​&nbsp;email đó.</p>

<p>Nếu Email Blacklist gửi mail​​&nbsp;đến Mail server sẽ bị trả về lỗi sau:​​&nbsp;Sorry you cannot send email to me</p>

<p>Bước 5: Kiểm tra</p>

<p>Thử gửi 1 email từ Blacklist sang​​&nbsp;email bất kì trong hệ thống.</p>

<p><img alt="" height="200" src="https://phatthanhdat.com/uploads/news/2021_05/image-20210530122509-7.png" width="865" /></p>

<p>&nbsp;</p>

<p>Chúc các bạn thành công.</p>
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