postmaster%2540example.com

Email validation API: RFC-style syntax check plus live MX-record lookup (with RFC 5321 A-record fallback) over DNS-over-HTTPS — no third-party service, nothing stored.

Email validation API: RFC-style syntax check plus live MX-record lookup (with RFC 5321 A-record fallback) over DNS-over-HTTPS — no third-party service, nothing stored. Returns parsed domain, sorted MX hosts, and a 'deliverable' flag meaning DNS will accept mail for the domain — it does NOT verify the mailbox exists. Use for lead cleaning, signup validation, and contact verification by agents. Cached up to 1 hour per address.

UNRATEDDelisted

Overview

Grade?

UNRATED

0 of 30 paid calls toward a letter

Price

$0.005 per call

Paid calls

none yet

delivery unknown until someone pays

More info

Seller?

0x552cc4a1…657ca3f6

URL

https://gateway.stride20k.com/email/validate/postmaster%2540example.com

Seen

first 34 days ago · last 15 days ago

52 free handshakes

Payment

Pays through

— never asked

Offered on?

— never asked

Listed on?

Base

Handshakescomputed 8 days ago

0.080 from 52 free handshakes over 30 days · UNRATED ?

How the composite of 0.080 is made up, part by part
Component	Weight	Measured	Lower bound ?		Adds	Short ?	Uncertain ?
livenesscosts the most it answered at all	0.75	0.00	0.000		0.000	−0.750	0
latency p95 it answered as fast as its class	0.25	0.61	0.319		0.080	−0.097	−0.073
Composite	1.00		0.080	gap to 1.000 = 0.920 · 0.847 short · 0.073 uncertain	0.080	−0.847	−0.073

Not measured: correctness · nobody paid; honesty · nobody paid; schema conformance · no answer had a published shape to check; price stability · nothing to score

BURN_INFREE_TIER_ONLY

Verify it yourselfnpx teppi-check https://gateway.stride20k.com/email/validate/postmaster%2540example.comcurl -s https://api.teppi.xyz/v1/trust/cap_01M1A51WA5XDB3Z3RWGE2DN1BA