It seems that I'm not the only one being inflicted with a new wave of image spam, as Bill Benson, a MacInTouch reader, has posted his rule solution for this junk that seems to so easily elude Mail.app's filters. Tim Gaden at Hawk Wings, also a victim, elaborates on how to set up this rule, as a trick is involved. To summarize:
- for the first condition, select 'Edit Header List...'
- in its accompanying option, chose 'Content-Type' (or create it if you have to)
- The Content-Type option will then take first place in the rule (or you might have to select it from the criteria list), allowing you to finish building the rule as pictured
Since I have been receiving around a dozen of these messages on a daily basis, I think I can say that, so far, this rule has been a success. Three cheers for the power of community -based spam filtering. If you aren't using Mail.app, however, I would imagine this trick can be adapted for other email apps. Anyone else try it outside of Mail.app?