Receiving someone else's Apple ID emails

I am getting Apple ID verification / password reset emails for an identical email to mine without the "." in it. This is because Gmail claims you own all iterations of the email (for example, if my email is john.smith@gmail.com then I also own johnsmith, j.ohnsmit.h, j.o.h.n.s.m.i.t.h, etc.. @gmail.com) , therefore this person is just using the email as their account/username for multiple things without actually having access to the email account.. most of the time I can just mark the promo emails as spam but I am concerned about the security risk of the ties to my Apple ID as well as other accounts that have been created... is there anything I can do?