>The problem is that I publish SPF records for my domain in the expectation >that they'll be used correctly. By behaving incorrectly, Microsoft >is making it less attractive for sites to publish SPF records lest they >be misinterpreted.
Microsoft's Sender-ID has been using SPF records to do Sender-ID checks for a decade. You just noticed now? In practice, Sender-ID has been a failure, nobody of any importance uses it any more, and Microsoft's own mail systems including Hotmail are now doing DKIM and SPF checks. R's, John
