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The Sender Policy Framework is an open standard specifying a technical method to prevent sender address forgery.

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Apache has been the most popular web server on the Internet since April 1996.

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Debian is a free operating system (OS) for your computer.

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Last technology detected on 30th January 2025. We know of 9 technologies on this page and 36 technologies removed from altundkelber.de since 4th December 2011. Link to this page.

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