There is: https://www.reddit.com/r/ethereum/comments/68tyhn/lemonmail_dapp_a_decentralized_email_service/ https://www.reddit.com/r/ethereum/comments/68tyhn/lemo

There is: https://www.reddit.com/r/ethereum/comments/68tyhn/lemonmail_dapp_a_decentralized_email_service/ https://www.reddit.com/r/ethereum/comments/68tyhn/lemonmail_... It uses IPFS to store encrypted mail messages. Right now its free, but eventually, you will have to pay for the storage of emails.