![]() ![]() Now choose Content-Type from that same pop-up menu and enter multipart/related in the Contains text field. In the dialog box that appears, click on the plus-sign button (+), type in Content-Type, and click on OK. Choose Edit Header List from the first condition pop-up menu. Type a name, such as Image Spam, in the Description field, and choose All from the If (Any or All) Of The Following Conditions Are Met pop-up menu. (It tells your e-mail program to combine multiple graphics into a single large image.) A rule can look for either or both of these characteristics and move matching messages into your Junk mailbox or folder.Īpple Mail Rules To create an image-spam filter in Mail, choose Mail: Preferences, click on the Rules icon, and then click on the Add Rule button (see “Eliminate Image Spam”). Multipart/related, which is rarely used otherwise. Likewise, most image spam includes a hidden Content-Type header with a value of The GIF format is much less common in legitimate mail, so it’s a good target. The Telltale Signsğor starters, image spam often contains GIF attachments. (Rules check your messages’ content, subject line, sender, and so on for certain conditions, and then filter out those messages as you specify.) Some spam filters (including SpamSieve) can identify image spam, but if your e-mail program can’t, it’s time to set up a rule. That way, there’s no text for a spam filter to work with. One of the biggest new spam trends is putting message content into an image-or, more frequently, into several pieces of an image that your e-mail program assembles when you view the message. It has been more than 99 percent accurate in my tests and offers numerous ways to customize and improve its results. Try a Third-Party Spam Filter The filters built into Mail and Entourage aren’t bad, but some add-on tools are much more sophisticated. (Typically, an e-mail program’s toolbar has buttons for this purpose.) And if your spam filter makes a mistake, you must correct it every time -if all bad messages are marked as junk and all good messages are marked as not junk, your filter will be much more accurate. Make sure you’ve activated yours and enabled all applicable options. Use Your Junk-Mail FilterĚpple’s Mail, Microsoft Entourage, and most other popular e-mail programs include spam filters. ![]()
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