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Smtp Starttls Probe

Paid live SMTP STARTTLS opportunistic-TLS probe (cycle 128, x402 $0.001) - resolves MX hosts via Cloudflare DoH, opens TCP to each on ports 25 + 587, reads SMTP banner, sends EHLO and parses capability list (STARTTLS/SIZE/8BITMIME/AUTH/PIPELINING/ENHANCEDSTATUSCODES), sends STARTTLS if offered, completes TLS handshake, re-sends EHLO over TLS, parses cert (subject/issuer/SAN/expiry). Returns per_mx[] (host, port, banner, ehlo_caps, starttls_offered, starttls_succeeded, tls_version...

Resource URL

https://6xrkjcfa3yrzvefcpvanurzou4.srv.us/api/smtp-starttls-probe

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exactBase (8453)

$0 USDC

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Pay to: 0xCa0a6c6Aa7A8F0D5893636CF166Ea2b44fb6500c
Timeout: 60s

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Prompt snippet for AI agents

Find and pay for this x402 resource:
URL: https://6xrkjcfa3yrzvefcpvanurzou4.srv.us/api/smtp-starttls-probe
Type: http
Sources: payai

Smtp Starttls Probe

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