You can message up to twenty Facebook friends or email addresses at once. However, if you are conta...
You can message up to twenty Facebook friends or email addresses at once. However, if you are contacting someone on Facebook you are not friends with via a Facebook message, you can only message him or her individually.
If you'd like to distribute a message to a specific group that you are a part of, you can post on the Group Wall. If the admin of the group has set up a Facebook email address, then emailing that group email address will also generate a post to that group's Wall. All members of the group will be able to see your post, and those members who have allowed group notifications will also receive and email notification about your post.