
Mailchain
Mailchain is the communication layer for Web3.

What is Mailchain?
At present, Web3 identities cannot communicate privately. The lack of native communication-infrastructure critically limits usability. Mailchain solves the problem through its open-source communication protocol and unified inbox application. Using Mailchain, anyone can privately email another Web3 identity or blockchain address. It’s as simple as using webmail. Users can manage communications for all their identities, across all protocols in one unified place.
Web3 dapps and developer tools related to Mailchain
Discover blockchain applications that are frequently used with Mailchain.
Developer resources from Alchemy

How to evaluate dedicated blockchain infrastructure providers
A practical checklist for evaluating dedicated blockchain infrastructure: consistency, uptime, isolation, region, flexibility, and migration path.

How we built low-latency RPC infrastructure
RPC latency is a systems problem, not a single bottleneck. Here is how Alchemy reduced latency across the edge, routing, scaling, node operations, and measurement.

Building the world’s largest prediction market: Polymarket at $15.5B+
While Polymarket was scaling their business on Alchemy, our team completely rebuilt our infrastructure from the ground up to elevate our customers to the next level.
Mailchain alternatives
Explore web3 competitors and apps like Mailchain.
App store listings are independently reviewed and written by Alchemy using a combination of inbound submissions, editorial research, public project sources, and third-party directories, including ecosystem data from The Grid under the Open Database License, DefiLlama, DappRadar, Reown, and chain ecosystem pages.

