Authenticated email gateway for AI agents — SPF/DKIM verified inbound, HMAC-signed delivery, webhook + WebSocket fan-out, CLI + SDKs
$claude plugin marketplace add tokencanopy/e2aInstalls into the current project.
Install e2a by running `claude plugin marketplace add tokencanopy/e2a`, then use it for the current task and follow its documentation at https://github.com/tokencanopy/e2a.