drupal notification for content type I have a requirement to allow users to subscribe content type. When a new node of the subscribed content type is created, notification mail must be sent. I tried notify module but it only allows to subscribe while registration. 

Is there any solution for unsigned users to subscribe a content type?
I'd try to create a rule that's fired when new content is added and when a user is subscribed to it (check this with a condition). Use the 'Send email' action to send an email to the subscribed users.