Featured in Domain Arrivals · 2026-08-19
Agent Herald Gives Your Agent a Return Address
A transactional email API and MCP server for sending from a verified domain, reading inbound mail, and tracing delivery events.
Why it surfacedAgent Herald treats email as agent infrastructure rather than an inbox feature: REST and MCP calls share an audit log, while DKIM, SPF, DMARC, suppression lists, signed webhooks, attachments, and idempotent sends handle the unglamorous machinery. Its clearest pitch is also its best line: “Give your agent a return address.”
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The Song Resumes After the Story
August 19’s newborn domains include a Hawaiʻi road-trip radio that resumes each song after a GPS-triggered story, an offline Chattanooga recovery map, a 100 KiB operating system running Doom, and an archive of 169,588 Discord roleplay messages.
This is one of 1,000 discoveries in the 2026-08-19 Domain Arrivals issue.