FOIA works best when requests are as specific as possible. The U.S. government sometimes plays games with journalists, researchers, and other watchdogs, rejecting asks it considers too vague — such as requests for correspondence that fail to include an official’s government email address.

That’s why The Intercept is publishing Musk’s government email address.

According to a source, Musk has been assigned the email address erm71@who.eop.gov. The email address reflects his attachment to the White House Office, the Executive Office of the President, and, apparently, Musk’s full initials plus his birth year, 1971. This differs from the standard format for EOP emails, which typically include the staffer’s full first and last name.

The Intercept has already filed more than a dozen FOIA requests for Musk’s emails using this information.

Musk did not reply to a request for comment sent to his email address. Susie Wiles, the White House chief of staff who nominally supervises Musk, also did not reply to The Intercept’s inquiry.