There’s been a lot of posts about the work being done on spam prevention lately on Inside Windows Live, and now the Hotmail Team found that spammers are abusing Hotmail’s automatic vacation reply feature. To prevent spam they’ve decided to temporarily shut off that feature. It’s not going for good, only until the team worked out the best way to prevent it being misused.
Other WL posts about preventing spam:
Just say no to bogus Messenger invitations
Preventing spam and phishing using e-mail authentication
Spam, phishing, and other annoyances
Fighting the war on spam