"Mr Cerutti" doesn't want to send you details of a transaction with "mutual Benefits". The "transaction" will involve him asking you for money. He's a scammer who wants to steal your money by asking you for fees. Ignore him.
I seek your assistance on a business transaction that will be of mutual
benefits. Kindly email me your name, company name (if any), your address,
telephone and fax number.
On your response, I will send you the full details and more information
about myself and the funds.
Kindly reply through my private email firstname.lastname@example.org