Does Hotmail run SPF?

Answer to the question from the area: adoption and introduction

Does Hotmail run SPF?

No, Hotmail operates a sender ID. For information about the differences between SPF and SenderID, see SPF vs Sender ID. However, we can help you publish SPF entries that are used by Hotmail. However, we cannot help you with Hotmail-specific problems. You must contact them personally. The contact address for Sender ID issues is senderid@microsoft.com.