Receive 2 moderate email or 2 notify comments email

Hola,

I having a wordpress blog with version 2.7.1.

In my blog configuration, when some body post comments..My Blog system will sent me 1 notify email…But i found out that the blog admin have sent me 2 email at the same time….

My reader just post a comments, then i will receive 2 notify email. No matters notify for moderate comments or notify for new comments.

Thx.