Letterkeel: Send Email via SMTP, Resend, SendGrid & Mailgun
Letterkeel: send email from your own domain via SMTP, Resend, SendGrid, Mailgun, Postmark
Servidor MCP · de shawmena-dotcom
Resumo
Letterkeel: Send Email via SMTP, Resend, SendGrid & Mailgun é um servidor MCP publicado por shawmena-dotcom. Marketplaces que lemos e que o listam: 1 (Official MCP Registry). Vimos pela primeira vez em 2026-10-11 e não registramos mudanças desde então. Conforme nossa passagem pelos marketplaces em 2026-10-13.
O que pede
- Roda remotamente
Nenhum dos marketplaces que lemos publica as ferramentas ou as configurações que ele pede.
Exige: cabeçalho Authorization
O que declara, pede e executa, por completo
Instale apenas plugins de desenvolvedores em quem você confia. Mostramos o que os marketplaces publicam e não testamos plugins.
Conectar
Sem dados para um comando automático: o que os marketplaces declaram não diz de forma inequívoca como conectá-lo.
Onde está publicado
| Marketplace | Status | Versão | Números | Verificado | Visto pela primeira vez |
|---|---|---|---|---|---|
| Official MCP Registry (Abrir o registro) | Listado | 1.0.1 | Nenhum número publicado | Sem marcação |
Cada número é do próprio marketplace e nunca é somado entre marketplaces. Um marketplace que não publica números não mostra nenhum: sem número não é zero.
O que mudou
Nada mudou neste plugin desde que começamos a acompanhá-lo.
Possivelmente o mesmo plugin
Listagens que compartilham um sinal com esta, mas não o bastante para tratá-las como o mesmo produto.
- Bonafido: Business Domain Verification API
- Capturewren: Website Screenshot API for AI Agents (Image + Text)
- Commonkite: Free Image Search API, Creative Commons & CC0
- CyberMax Data
- DomainDNA: Tech Stack Detector, WHOIS & Domain Age API
- Feedpeck: RSS Feed Finder & Reader by Website
- Fieldwright
- Firmfold: Company Enrichment API
- HireHeat Jobs: Career Site Job Listings from 12,000+ Companies
- HireHeat: Hiring Signals & Company Job Postings by Domain
Forks e cópias
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Produtos cujos próprios nomes, descrições, ferramentas e skills são os mais próximos deste pelo significado, em todos os marketplaces que lemos. A proximidade é ordenada apenas dentro desta lista.
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Letterkeel: Send Email via SMTP, Resend, SendGrid & Mailgun
Letterkeel: send email from your own domain via SMTP, Resend, SendGrid, Mailgun, Postmark
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Letterkeel: Send Email via SMTP, Resend, SendGrid & Mailgun
Letterkeel: send email from your own domain via SMTP, Resend, SendGrid, Mailgun, Postmark
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securessmtp com.securessmtp/securessmtp
Send email, manage sending domains, and read delivery analytics from your SecureSMTP account.
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Agent Email List — Free SMTP Relay for AI Agents
Free transactional email + SMTP relay. Agents self-signup, no API key needed to start.
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mcp-server co.truncus/mcp-server
Send transactional emails from AI agents via Truncus. Validate, track delivery, and manage domains.
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vaemail io.github.vaemail/vaemail
Email infrastructure for AI agents: send, authenticate domains, track delivery, diagnose issues.
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mail-send dev.mailkite/mail-send
Send transactional email over a verified domain — templates, attachments, custom headers.
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SendGrid MCP — wraps SendGrid v3 API (api.sendgrid.com/v3)
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mailkite dev.mailkite/mailkite
Send email, manage domains, DNS, webhooks, templates, and inbound routing on MailKite
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Send and receive email, and manage templates, inboxes, contacts and broadcasts.
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A mesma pergunta feita a cada marketplace separadamente: existe lá um equivalente deste plugin?
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Letterkeel: Send Email via SMTP, Resend, SendGrid & Mailgun
Letterkeel: send email from your own domain via SMTP, Resend, SendGrid, Mailgun, Postmark
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Letterkeel: Send Email via SMTP, Resend, SendGrid & Mailgun
Letterkeel: send email from your own domain via SMTP, Resend, SendGrid, Mailgun, Postmark
-
securessmtp com.securessmtp/securessmtp
Send email, manage sending domains, and read delivery analytics from your SecureSMTP account.
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Free transactional email + SMTP relay. Agents self-signup, no API key needed to start.
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Send transactional emails from AI agents via Truncus. Validate, track delivery, and manage domains.
Encontrados pelo significado, não por código ou repositório em comum: plugins semelhantes continuam sendo produtos distintos, e isto não é uma avaliação nem uma recomendação.
Este plugin é seu?
Adicione-o aos seus projetos e prove que o mantém com um arquivo no repositório, um arquivo no seu domínio ou um registro DNS. Você recebe alertas quando um marketplace o publica, o remove, muda a marca de verificado ou o que ele pede, e o endpoint remoto passa a ser monitorado como um serviço web.
Dados de Official MCP Registry. Os números vêm das nossas próprias passagens regulares pelos marketplaces, última leitura em . Não publicamos dados de contato dos editores de plugins.