Every permutation of dots within my GMAil address seems to have been explored by people in Australia and the US.
Usually I get car rental receipts, advice on finances, product test emails, home decor product recommendations, stuff from something called 'Belk'
Why can't Google stop people opening email accounts with a.surname@gmail.com as it all just goes to asurname@gmail.com???
If the dot doesn't work, don't let them use it!