Hi,
Thank you for contacting us and trying to protect the community.
However, in this case, those emails are legit automated emails from Bitsler.
Our email provider uses our online domain to track clicks on the emails and redirect to the original domain we used on the backend (either bitsler.com or any of our mirror domains like bitsler.gg)
If we use a bitsler.com subdomain (like we did for some time), players using bitsler.gg would be unable to register or click the links from our emails.