silverstripe/silverstripe-spamprotection — pull request #6 by tractorcow (2013-04-10 02:52:47+00:00)
Title: BUG Fixed incorrect field specification

Email spam field (for Mollom, which I presume this extension is targetting) should be author_mail not author_email

https://github.com/silverstripe/silverstripe-mollom/blob/master/code/MollomField.php#L28