mailsac.com valid
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Mailsac
Mailsac is an email testing service for developers and QA teams. It gives you test inboxes you can read over a REST API, so automated tests and CI/CD pipelines can check that signup verification, password reset, magic link and one-time code emails arrive and work. Public @mailsac.com inboxes need no setup; paid plans add private addresses and private test domains (your own domain or a zero-setup *.msdc.co subdomain), webhooks, WebSockets, team logins with SAML SSO, and higher volume.
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Machine-readable: GET /v1/resolve?q=mailsac.com · GET /v1/domain/mailsac.com · this page as Accept: application/json or text/markdown · MCP lookup_domain · watch this domain