EmailVerify lets only people who own an email at a domain you choose into your Discord: @*.edu, your company, or an exact list of addresses. Members click a button, enter their email, type back a 6-digit code, and get the right role, with students and staff split automatically. Addresses are stored only as hashes. Free for 25 verifications a month, open source (AGPL-3.0), self-hostable. 2,500+ servers and 240,000+ members verified since 2021.