Mailtrap
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Email API and SMTP for sending transactional and bulk emails, with email testing sandbox for safe development
API Endpoint
https://mailtrap.ioMore Email APIs
Email address validation
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Check a domain's SPF, DKIM, DMARC and MX with a graded shareable report
HTTPS CORS Free
Email for AI agents: programmatic inbox creation and send/receive over JMAP
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