1 unmodifiable notifier

[Tim McCune]

I can add, edit, and delete notifiers for my project in Continuum, but
there is a single notifier whose recipient is my e-mail address, that
has no "Edit" or "Delete" links.  In the "From" column, its value is
"Project", while other notifiers have the value "User" in this column.
Sorry if I'm just not understanding the intent here, but why can't I
delete that notifier?  Where did it get my e-mail address from?  What
does the "From" column mean?