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I'm personally not too keen on the violent imagery in a lot of the logos (such as the crosshairs). Considering the militant nature of a lot of anti-spam crusaders, I think that a logo with violent imagery would reflect poorly on our project and may cause people to associate us with the more militant folks. I'd like to see some more fun entries, like the old rubber ninja logo. (HenryStern)

Seems tricky to use a non-violent image, given that the word Assassin figures so prominently in the name of
the product. I'm thinking that an umbrella in a heavy storm is an appropriate image for what SpamAssassin does,
but it doesn't fit the name very well at all.

Also, you might want to warn people to keep track of the fonts that they use as well as the clip-arts.
We've had problems where I work where a cool new logo came out and then we found out we had to licence
the Adobe-owned font to use it. (CharlesBrabec)

Expanding on Dan Kohn's comments, in addition to keeping a light "assassin/ninja" theme, a successful logo should immediately convey the concept of "filtering email." I do not know what would work well, but a few graphical concepts come to mind, shown below: (Michael Douma)

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