#smtp

1 post

Postern: a mailbox on Cloudflare for humans and agents Jun 25, 2026

Postern replaces our retired send-only cf-email-relay with a full mailbox: inbound via Email Routing, outbound via Email Sending, D1 and R2 storage, FTS and optional semantic search, webmail and read-only IMAP, a Go SMTP relay for legacy callers, and one structured API that agents and humans both use.