# Email Auth — one channel, three ways in > OTP, magic link, and social login behind one API — one verified user, one token. Delivered from a warm, authenticated domain that lands in the inbox. ~99.6% delivery. ## Modes - OTP code - Magic link (one-time, expiring) - Social and enterprise logins from major providers including Google, Apple, Microsoft and GitHub ## FAQ **What sign-in methods are supported?** OTP, magic link, and social and enterprise logins from major providers including Google, Apple, Microsoft and GitHub behind one API, returning one verified user and one token. **Will emails reach the inbox?** Sent from a warm, authenticated domain with ~99.6% delivery. Talk to our team: https://otpless.com/talk-to-sales.html