Agent Email List — Free SMTP Relay for AI Agents
by @fastdrop
Free transactional email + SMTP relay. Agents self-signup, no API key needed to start.
Free transactional email + SMTP relay. Agents self-signup, no API key needed to start. Official MCP Registry: com.agentemaillist.ai/free-transactional-email-smtp-relay@0.2.0. Remote endpoint: https://ai.agentemaillist.com/mcp
Problem it solves
Discoverable MCP server listed in the official MCP Registry.
How it's different
Remote MCP endpoint ingested from the official registry and probed by FastDrop.
Ingested from the official MCP Registry
FastDrop pulled this entry from the official MCP Registry as com.agentemaillist.ai/free-transactional-email-smtp-relay and probed the endpoint. The maker did not submit it, so the outbound link is not endorsed
and the description is not theirs.
If this is your server, claim the listing to edit it and take ownership. The registry index lists everything else still awaiting a probe.
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Read directly from the endpoint on 15 Sept 2026. Not supplied by the maker.
create_accountCreate an account on this email service and get an API key back. Needs no existing credentials, so an agent with nothing can call this first. The key is returned once and never again. Free, with no ca
list_domainsList the sending domains on this account, with their verification state and how much of today's sending allowance each has left.
add_domainRegister a domain to send from, and get the DNS records that must be published before it will work. Publishing DNS usually needs a human with registrar access, so start this early. The domain cannot s
verify_domainRe-read DNS now and mark the domain active if its SPF and DKIM records are visible. DNS takes minutes to hours to propagate; poll this every few minutes, not every few seconds.
send_emailSend a message. The domain must be verified and the from address must belong to it. Counts one against the daily allowance per recipient. Set test_mode true to run the whole pipeline, including conten
get_sending_limitsHow much this domain may send today and what graduates it to the next rung, plus this account's standing: how many domains it may hold and whether sending is paused. New domains start at a low daily c
list_messagesRecent messages for a domain, sent and received. Use direction to filter, and folder to separate inbox from spam on received mail.
get_delivery_eventsWhat happened to messages on this domain: accepted, delivered, failed, and so on. A send returning success means queued, not delivered; this is where the delivery outcome actually appears.
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