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+# Spam Question Filter
+
+…is simple event filter for Symphony CMS to prevent spam by asking the user to calculate a easy math question.
+
+I wrote this [Symphony CMS] extension during the development of a new website for a [local musical society] as I was not satisfied with the solutions available for spam prevention in the [Symphony CMS] context.
+
+The source code is available via [Github] or [cgit] for your convenience.
+
+[Symphony CMS]: http://www.getsymphony.com/
+[Github]: https://github.com/KnairdA/spamquestionfilter
+[cgit]: http://code.kummerlaender.eu/spamquestionfilter/
+[local musical society]: http://mv-mahlspueren.de