what's ZK Email?
ZK Email is a zero-knowledge cryptography protocol that enables verifiable proofs of email content and metadata without disclosing the email itself. It leverages circuits for DKIM signature verification, RSA public keys, and email parsing to prove facts like text presence in sent/received emails, trusting only the sending mailserver. This powers on-chain applications such as Proof of Twitter (minting NFTs for Twitter account ownership via proofs from Twitter emails) and email wallets (smart contracts controlled via email instructions). Open-source SDKs and Solidity contracts support integration for privacy-preserving blockchain interactions.
ZK Email integrates privacy-preserving email verification with ENS, enabling internet usernames.
Links
x.com/zkemailReceived mention in Pantera Capital's 2026 trend analysis alongside zkTLS technology as part of verification infrastructure category.
zkemail holds office hours at the ENS booth.
ZK Email team hosts office hours at ENS booth showcasing integration that brings privacy-preserving email verification to ENS, enabling users to use usernames from across the internet with ENS.
zkemail participated in a panel discussion at ETH's invisiblgarden closing ceremony alongside Aztec and Ethereum Foundation representatives, presented as part of EF Devcon events.