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cya securing exchange server 2003 and outlook web access phần 8

Khi bất kỳ tin nhắn đến sẽ được kiểm tra, mỗi bộ lọc e-mail rác danh sách cho địa chỉ e-mail ưu tiên về lĩnh vực. Chúng ta hãy lấy một ví dụ. Giả sử rằng các syngresspublishing.com miền là danh sách người gửi bị chặn của bạn (tất nhiên, điều này sẽ không bao giờ được các trường hợp trong cuộc sống thực), | 220 Chapter 9 Combating Spam Figure 9.6 Blocked Senders List When any incoming messages are checked each junk e-mail filter list gives e-mail address precedence over domains. Let s take an example. Suppose that the domain syngresspublishing.com is on your Blocked Senders list of course this would never be the case in real life and the address editor@syngresspublishing.com was on your Safe Senders List.The address editor@syngresspublishing.com would then be allowed into your inbox but all other e-mail addresses with the syngresspublishing.com domain would be sent to your Junk E-mail folder. As was the case on the Safe Senders and Safe Recipients lists we can import or export from a .txt file to the Blocked Senders list. Note The Safe Senders Safe Recipients and Blocked Senders lists were featured because they are so common to the Outlook Web Access variants also covered in Chapter 7. We ve been through all four tabs of the Junk E-mail Options and it s time to move on to the External Content Settings so click OK to exit the Options and click the Security tab see Figure 9.7 . Combating Spam Chapter 9 221 Figure 9.7 The Security Options Tab Click Change Automatic Download Settings under Download Pictures.You ll see the screen presented in Figure 9.8. Figure 9.8 Automatic Picture Download Settings Under Automatic Picture Download Settings we can specify whether pictures or other content in HTML e-mail should be automatically downloaded. We can even specify whether downloads in e-mail messages from the Safe Senders and Safe Recipients lists used by the Junk E-mail folder should be permitted or not. We can also specify 222 Chapter 9 Combating Spam whether downloads from Web sites in the Trusted Zone of the Outlook Security Zone should be permitted. Last but not least it s possible to enable Warn me before downloading content when editing forwarding or replying to e-mail which when enabled displays a warning message for each edited forwarded or replied message containing .