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We occasionally have to ask for a "Contributor License Agreement" from someone who sends in a patch or code that we want to include in the SpamAssassin codebase. This is a legal requirement (a similar situation applies in other projects, such as other ASF projects or the Linux kernel). It doesn't apply in all cases, just for "big" patches.
The \[http://www.apache.org/foundation/ ASF\] uses a form called the "Contributor License Agreement" for this. This can be found here: http://www.apache.org/licenses/#clas Wiki Markup
it's now possible to file CLAs via email:
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The list of people for whom a CLA has been received, and has been noted by the ASF's secretary, is kept here: http://people.apache.org/~jim/committerscommitter-index.html
If there's a delay via the ASF's secretary, you can also send it to (or cc) the SpamAssassin PMC chair (currently, this is Justin Mason: jm /at/ jmason.org ). Since the to escalate. The PMC chair is an officer of the ASF , they and can legally record it and allow the patch to be applied (iirc)if the issue is time-sensitive.