Try HPYCPE@...

Connie Sunlover sent me an email last Friday saying someone had hacked
the club's email account, so don't use the previous hotmail address
anymore, especially not to purchase anything - membership, burgee, T-
shirts, etc. She was Stateside at that time due to the death of her
Father, so she was understandably a little preoccupied. The new email
address she gave me for Hidden Port Yacht Club contained the www. in
it, and that doesn't work. So I just took out the www dot com, the new
one above (at yahoo dot com) seems to be working - although nobody is
there to answer it yet. The HPYCPE stands for Hidden Port Yacht Club
Puerto Escondido and it's a yahoo address instead of a hotmail one.

I don't know about email changes for Puerto Escondido Marine Services.