{"uid":"cap_q-UmQMoNXAjQiGkk469fT","slug":"is-port-587-open-bulk-821855d0","name":"is-port-587-open-bulk","description":"Bulk is port 587 open: up to 20 hosts in one call, processed concurrently, results in input order with a per-item error field and a failure count. Same answer per item as the single endpoint. Batch enrichment for agents that hold a list. $0.10 per batch.","url":"https://ip.intel.rallylive.ca/bulk/ip/port/587?utm_source=zero.xyz","method":"GET","headers":{},"bodySchema":{"type":"object","$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":"0.1","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":"$0.1/call","primary":{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.1","per":"call","confidence":"exact"},"accepted":[{"kind":"static","protocol":"x402","network":"base","amountUsd":"0.1","per":"call","confidence":"exact"}]},"paymentMethods":[{"uid":"pm_SbSHeAEGnHeq3k87qx5qw","protocol":"x402","methodType":"crypto","chain":"base","mode":"charge","costAmount":"0.1","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 587 (SMTP submission) is open on up to 20 hosts in a single concurrent batch call, returning ordered results with per-item error fields and a failure count.","exampleAgentPrompt":"Can you check whether port 587 is open on all of these mail servers at once: mail1.example.com, mail2.example.com, and smtp.mycompany.org? I need results for each one with any errors flagged.","exampleUseCases":[{"title":"Mail server fleet SMTP audit","prompt":"I have a list of 15 mail servers and I need to know which ones have port 587 open for SMTP submission — can you check them all at once and tell me which ones failed?"},{"title":"Pre-deployment email relay check","prompt":"Before we launch, can you verify that port 587 is open on all of these candidate relay hosts: relay1.infra.io, relay2.infra.io, relay3.infra.io? Flag any that are closed or unreachable."},{"title":"Bulk ISP SMTP restriction detection","prompt":"I want to check whether my list of customer IP addresses have port 587 accessible — can you scan all 12 of them in one go and give me a count of how many are blocked?"}],"resultDescription":"An ordered array of results corresponding to the input host list, where each item includes the open/closed status of port 587 and a per-item error field if the check failed; also includes an overall failure count for the batch.","failureModes":["Host unreachable or DNS resolution failure — per-item error field populated","Batch exceeds 20 hosts — request rejected or truncated","Network timeout on individual host probe — error flagged for that item only","Invalid hostname or IP format — per-item error returned","Payment not included or insufficient — 402 payment required response"],"whenToPreferThis":"Use this endpoint when you have a list of hosts (up to 20) and need to check port 587 availability across all of them efficiently in a single call rather than making sequential single-host requests. It is ideal for batch enrichment workflows, pre-deployment audits of mail infrastructure, or monitoring a fleet of SMTP relay servers. Choose the single-host endpoint instead when checking just one server.","instructions":null,"reviewSummary":null,"reviewSummaryHighlights":null,"reviewSummaryConcerns":null,"reviewSummaryGeneratedAt":null,"activationCount":0,"lastUsedAt":null,"lastSuccessfullyRanAt":null,"lastHealthCheckAt":"2026-10-11T00:45:06.649Z","isFirstParty":false,"canonicalSlug":"is-port-587-open-bulk-821855d0"}