@pixelfed hey, sorry about this :( Your mail on Mar 18th looks like it was sent to abuse@matrix.org, but didn't get a response because your mail address was bouncing (SMTP 550 5.1.1 Recipient address rejected: User unknown in virtual mailbox table from mx01.mta.zknt.org). We can (could have?) pointed the room alias to a new room if you created one with the right permissions. support@matrix.org is the right place for this sort of support request (although we are very overstretched atm).