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SMTP Senpai Email API

REST API and SMTP relay for transactional email: send messages, read delivery results and statistics, manage the suppression list and receive signed webhooks. DKIM on your own domain, 90-day sending log, EU servers, human support. OpenAPI document available. 14-day free trial, then from EUR 12.90/month + VAT on the annual plan. By MailSenpai, which also runs a free keyless email DNS check API and a remote MCP server.

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Features & Specifications

HTTPS Support
Yes
CORS Support
Unknown
Authentication
apiKey
Pricing Model
Trial

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SMTP Senpai Email API
SMTP Senpai Email API preview interface