Update your address books!
If you correspond with any Facebook staff members, you’ll need to change their email addresses to @fb.com by Jan. 5 at the latest.
That’s because Facebook is moving all of its employees to @fb.com email addresses, to use @facebook.com for its new messaging service.
Here’s the auto-response email we got earlier.
Facebook has changed its corporate email address domain from @facebook.com to @fb.com.
Your message has been delivered to the intended recipient, but please update your contact details with <address>@fb.com for future correspondence. You will not receive this message again if you utilise <address>@fb.com. We will not be forwarding any email sent to @facebook.com corporate email addresses past January 5th, 2011.