Korg Poly800/EX800 Users

Sorry I`m out of topic. I received mail from Michael Hawkins 
(patrioticduo@...) with text:

"I sent this email to you because your email address is subscribed to 
the Yahoo group "Korg Poly EX" and I am attempting to clean up the list 
by removing inactive participants or removing email addresses that are 
associated with spamming activities.
If you wish to remain subscribed, just reply to this email with a few 
words stating that youd like to stay on with us.
Regards,
Mike H. Korg Poly EX Moderator"

I don`t know if it isn`t spam, so I`d like to make sure, if KORG POLY-
EX moderator wrote this mail.  Thak you.