{"query":"mailsac.com","mode":"domain","best":{"domain":"mailsac.com","status":"valid","tier":"listed","authority":50,"verified":false,"title":"Mailsac","summary":"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.","llms_txt":"https://mailsac.com/llms.txt","llms_full_txt":null,"last_checked":"2026-10-19T16:22:47.147Z","agent_terms":null,"categories":["developer-tools"],"capabilities":[],"inferred_tags":[],"audience":null,"agent_uses":[],"language":null,"platform_generated":null,"agent_summary":null,"llms_txt_cached":"https://agentwebmap.com/v1/domain/mailsac.com/llms.txt","why":["authority 50 (listed)","checked 1809 minutes ago"]},"read":{"llms_txt":"https://mailsac.com/llms.txt","llms_full_txt":null,"nested_llms_txt":[]},"terms":null,"health":{"ok":true,"status":"valid","tier":"listed","authority":50,"last_checked":"2026-10-19T16:22:47.147Z","checked_minutes_ago":1808,"stale":true,"max_age_seconds":86400,"live_checked":false,"http_status":200,"last_valid":"2026-10-19T16:22:47.147Z","content_hash":"e89c41e5435950b13e5c6cba06618757"},"sources":[],"match":{"strength":"domain","reason":"Exact domain or its registered publisher."},"provenance":{"selection":"directory","verification":"domain_ownership","terms":"unknown","excerpts":"publisher_link_metadata","health":"stored_crawl"},"alternatives":[],"watch":"POST https://agentwebmap.com/v1/watch with {\"domain\": \"mailsac.com\", \"webhook_url\": \"https://your-endpoint\"} to be told when its llms.txt changes or breaks"}