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SpamWars Toolbox
Three tools that can help you decode mail message bodies and URLs that have been obfuscated by spammers. (JavaScript must be enabled in your browser to use these tools.)
Spammer Tricks
A familiar spammer technique is to create a subject line or message that is intended to elicit an emotional response from the recipient. For example, a subject may indicate that "your order is ready," when you know that you didn't order anything. [from Chapter 5, "It's the Spamonomy, Stupid"]
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A collection of tools and resources to help you fight spam.
base64 Decoder

STEP 1 Cropmark Copy base64-encoded text from a spam's source code, and paste it into the following text box:

STEP 2 Cropmark Click here:

STEP 3 Cropmark Read the results in the following text box:

TIP Cropmark If the decoding results in gibberish, try removing the first character from the base64 text you pasted into the top box and click the "Decode" button again. Removing one to three characters should get you to a point where the results are readable.