Roller, the open-sourced blog engine used on this site, collects email address settings in three different places. This causes some confusion and I hope the following offers some clarity.
Weblog Settings page
“Email address of weblog owner”: Used by site admins to contact the blog owner.
“Default from e-mail address for notifications”: Used as the from address for messages sent by the comments feature. For example, if a user posts a comment on a blog and checks “Notify me by email of new comments”, the from address in those emails will show the email address specified in this field.
Your Profile page
“Email”: The email address of the blog entry author who will receive email notifications of new comments left on the post they authored if the “Email notification of comments?” feature is enabled on the blog’s settings page.
The Common Misunderstanding
Many users think the “Email address of weblog owner” is where comment notifications are sent — when, in fact, email notifications about new comments posted on an individual blog entry are sent to the “Email” address defined on the “Your Profile” page of the blogger who authored the post.