The revelation of XMail came in response to a query posed by Nathan McGrady, a senior member of the Security Engineering team at X, the social media platform owned by Elon Musk. When asked about the launch date of XMail, Musk cryptically responded with just two words: "It's coming." This terse confirmation sent shockwaves throughout the email sector, signalling Musk's intent to disrupt the dominance of Gmail.

source https://www.gadgetsnow.com/tech-news/xmail-know-about-elon-musks-new-mail-service-and-how-its-different-from-gmail/articleshow/108051390.cms