[Throwthrowbob]

I received a few e-mails from Playstation/Sony recently that were intended to go to <firstnamelastname>@gmail.com but I received them at <firstname.lastname>@gmail.com.

I tried doing a password recovery of the account (to see what I could do to change the address, or contact Playstation) and found that on their end, [e-mail] and [e-mail] are treated differently:

Both gave the message that a reset e-mail had been sent. Only [e-mail] caused me to receive an e-mail.

So Google (and other e-mail providers, like ProtonMail) ignore the dots, but it's possible that other companies don't ignore this.

Resolving the Playstation account required calling their support line for about 30 min, talking with an agent, and then replying to an e-mail generated specifying some information to confirm that I hold the e-mail account. They seem to already have the option for reporting misuse of an e-mail address.