I've been on mailing lists before, and take it for granted that "unsubscribe" means "right now". For Microsoft, it means "within the next 10 days". I wonder, is that business days or calendar days?

I submitted feedback to Microsoft a while ago as part of a survey they were doing, I don't even remember what it was. But every now and then, they send me additional survey requests. I got another one today and finally made the effort to click "unsubscribe". A moment later, I received the following automated email response:

From: winsurv@microsoft.com Subject: Windows Feedback Program removal confirmation Date: November 27, 2008 2:49:44 PM CST To: ******************

We have received your request to leave the automated feedback program and survey feedback program. Your request will be processed within the next 10 days.