What kind of joke is that? I’ve got a spam email to the unique email address I have created just for registration on this forum. I did not tick any “subscribe to newsletter or whatever” during the registration. Are you selling all your accounts to the third parties? Or is your forum hacked and leaks every new registration to the third parties?
I see that you send emails not from your own mail server but from Amazon SES and SendGrid. This means that spammers may not have hacked this website, but rather your account(s) on Amazon and/or SendGrid. I recommend you (whoever is responsible for the NVIDIA websites) to change the passwords for these accounts and check the login history to see who has accessed these accounts recently (if such logs exist, I do not know if Amazon or SendGrid keep them)
Akismet does not allow me to post mail server logs because it contains domain names so if you are interested see the deleted message above.
Thanks @nvidiaforum4 for sharing this.
I forwarded the information (including the hidden parts) to our security team.