Spam calendar invitation

I have received a spam calendar invitation from m85885092yixing4@126.com

It was sent to me and a number of other gmail addresses. None of the addresses are in my contacts.

It seems that I only have 3 options - 'Maybe', 'Decline' or 'Accept'. I'm cautious about doing any of these, as it will confirm that my email account is active. The other concern is that all the other invitees can view my email address!

Any tips or advice gratefully received - thanks!