Currently, there is a significant limitation in the Web3 space where identities are unable to communicate privately. This lack of native communication infrastructure greatly hampers usability. However, Mailchain has developed an innovative solution to address this issue. By leveraging its open-source communication protocol and unified inbox application, Mailchain enables seamless and private emailing between Web3 identities and blockchain addresses. This user-friendly platform functions similarly to webmail, allowing individuals to conveniently manage their communications across various protocols and identities within a single unified location.