B4X
B4X
Unobfuscate a Spammy Email
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Demonstrates the Chilkat Email.UnSpamify method, which unobfuscates an email by undoing common spammer tricks — it removes comments from HTML bodies and unobfuscates hyperlinked URLs. This example cleans an HTML body whose link was broken up by an inserted comment.
Background: Spammers deliberately scramble HTML to slip past filters — inserting empty comments in the middle of words or URLs (
exa<!--x-->mple.com), or otherwise obfuscating links — so the message renders normally to a human but confuses naive keyword matching. UnSpamify reverses those tricks, producing a normalized body that is easier to analyze, classify, or scan for the real destination of its links.Chilkat B4X Downloads
' Demonstrates the UnSpamify method, which unobfuscates an email by undoing common spammer
' tricks: it removes comments from HTML bodies and unobfuscates hyperlinked URLs.
Dim email As ChilkatEmail
email.Initialize
email.Subject = "UnSpamify example"
' An HTML body with an obfuscating comment inserted into a hyperlink.
email.SetHtmlBody("<html><body>Visit <a href=" & Chr(34) & "http://exa<!--x-->mple.com" & Chr(34) & ">our site</a>.</body></html>")
' Undo the obfuscation.
email.UnSpamify
Dim cleaned As String = email.GetHtmlBody
Log(cleaned)