{"uid":"cap_bNjxXv8z-6xBw0Rcgcnlc","slug":"is-port-465-open-087ead7c","name":"is-port-465-open","description":"Is TCP port 465 (SMTPS) open on a host? Attempts a connection from Cloudflare's edge and reports open/closed/filtered with the connect time; Cloudflare-fronted hosts are reported as inconclusive because their edge answers for them. Exposure checks for SMTPS without running a scanner. $0.01 per check.","url":"https://ip.intel.rallylive.ca/ip/port/465?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","$schema":"https://json-schema.org/draft/2020-12/schema","required":["input"],"properties":{"input":{"type":"object","required":["type","method"],"properties":{"type":{"type":"string","const":"http"},"method":{"enum":["GET"],"type":"string"},"queryParams":{"type":"object","properties":{}}},"additionalProperties":false},"output":{"type":"object","required":["type"],"properties":{"type":{"type":"string"},"example":{"type":"object"}}}}},"responseSchema":null,"example":null,"exampleRequest":null,"tags":["x402"],"displayCostAmount":"0.01","displayCostAsset":"USDC","priceDynamic":false,"priceHint":null,"priceStatus":"priced","priceSource":"probe","requiresHandshake":false,"reviewCount":0,"rating":{"score":"0.00","successRate":"0.00","reviews":0,"stars":null,"state":"unrated"},"availabilityStatus":"unknown","priceObserved":null,"sessionDeposit":null,"pricing":{"kind":"static","summary":"$0.01/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.01","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_XQYi9i95UB172jRl7Wp2k","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.01","costPer":"request","priority":0,"asset":"0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913","unit":"request","depositMicros":null,"planRef":null}],"brandName":null,"brandSlug":null,"brandBaseUrl":null,"brandDocsUrl":null,"whatItDoes":"Checks whether TCP port 465 (SMTPS) is open, closed, or filtered on a given host by attempting a connection from Cloudflare's edge network","exampleAgentPrompt":"Can you check whether TCP port 465 (SMTPS) is open or closed on mail.example.com? I want to know if SMTPS is exposed without running my own scanner.","exampleUseCases":[{"title":"Verify mail server SMTPS exposure","prompt":"Can you check if port 465 is open on smtp.mycompany.com? I want to confirm our secure mail port is accessible before we switch clients over to SMTPS."},{"title":"Security audit for exposed SMTP ports","prompt":"I'm auditing our public-facing infrastructure — can you probe port 465 on 198.51.100.42 and tell me if SMTPS is open, closed, or filtered from an external vantage point?"},{"title":"Email deliverability troubleshooting","prompt":"My SMTPS connections keep failing — can you test whether port 465 is actually open on mail.provider.net so I can rule out a firewall blocking it?"}],"resultDescription":"Returns whether TCP port 465 (SMTPS) is open, closed, or filtered on the target host, along with the connection time. If the host is fronted by Cloudflare, the result is reported as inconclusive because Cloudflare's edge intercepts the connection attempt.","failureModes":["Cloudflare-fronted hosts return inconclusive status because their edge answers for them","Invalid or unresolvable hostname returns an error","Firewalled or rate-limited hosts may appear filtered rather than closed","Network timeouts may cause delayed or failed responses"],"whenToPreferThis":"Use this endpoint when you need a quick, external probe of TCP port 465 (SMTPS) on a specific host without running your own network scanner. It is ideal for lightweight exposure checks, mail server audits, or deliverability troubleshooting where you need an outside-in view of SMTPS availability.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-13T00:41:46.945Z","isFirstParty":false,"canonicalSlug":"is-port-465-open-087ead7c"}