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Head to head

Agent Email List — Free SMTP Relay for AI Agents vs Blackwall

Same numbers we show everywhere else, lined up. Ratings come from users, the grade comes from our scanner, adoption comes from public registries.

Agent Email List — Free SMTP Relay for AI Agentscom.agentemaillist.ai/free-transactional-email-smtp-relay
B
No reviews yet

Free transactional email + SMTP relay. Agents self-signup, no API key needed to start.

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Blackwallcom.blackwalltier/blackwall
B
No reviews yet

API-key pre-action risk gate: any irreversible agent action (money, SQL, delete, email).

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The short version

Neither has been reviewed yet, so the comparison rests on the scan and the public usage numbers. Both score close on the safety scan (80 and 78 out of 100). Agent Email List — Free SMTP Relay for AI Agents is hosted and callable through the gateway; Blackwall runs on your own machine.

 Agent Email List — Free SMTP Relay for AI AgentsBlackwall
User ratingNo reviews yetNo reviews yet
Safety gradeB80/100B78/100
AdoptionGrowingGrowing
GitHub stars10
Downloads / week–64
Runs whereHosted (remote)Your machine (local)
Gateway-readyYesNo
Tools82
Write actions2—
Price per callFreeFree
Licence—MIT
Last release2026-09-182026-09-15
CategoryEmailEmail

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