harperdb.io

Valid Email Server
Domain Lookup › harperdb.io
Live data — DNS records and disposable check were just fetched and saved.

Domain Overview

DNS: ⚡ live Checker: ⚡ live
harperdb.io
Yes
✓ Yes
Google
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-05-21 04:57:16 UTC · ↺ Refresh

MX Hostnames

  • aspmx.l.google.com
  • alt4.aspmx.l.google.com
  • alt3.aspmx.l.google.com
  • aspmx.l.google.com
  • alt2.aspmx.l.google.com

MX Priorities

No priority data.

A / AAAA Records

  • 198.202.211.1

Mail Server IPs

No IPs resolved.

SOA Record

No SOA record found.

Nameservers (NS)

ns-717.awsdns-25.net
ns-1119.awsdns-11.org
ns-1642.awsdns-13.co.uk
ns-393.awsdns-49.com

SPF Record

✓ Soft Fail (~all)
v=spf1 include:_spf.google.com include:2940328.spf03.hubspotemail.net include:mail.zendesk.com ~all
📊 DNS lookups: 3/10
~ Soft fail (~all) — moderate enforcement

DMARC Record

~ Quarantine
v=DMARC1; p=quarantine; pct=100; rua=mailto:[email protected]; sp=quarantine; aspf=r;
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: quarantine

DKIM Selectors

✓ 1 found
google._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: google

Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses

All TXT Records

11 records
  • sending_domain1061472=e07b37a1d41e4c521578f98159e7f0a734d1df11fff92bcd0b46236a7213c379
  • SPFv=spf1 include:_spf.google.com include:2940328.spf03.hubspotemail.net include:mail.zendesk.com ~all
  • OSSRH-97444
  • anthropic-domain-verification-xz6ekj=GVZMMNBMfcC2rkqXp2WVF81Cs
  • apple-domain-verification=IGJ25anh2djRhCwq
  • asv=e72538fafcf1609647c26dd4cdca7b04
  • cisco-ci-domain-verification=677132b5c30533d7a70197d4908d1358cd2e2d51e9cd45d334ba45b116022b9e
  • google-site-verification=43niK_wBejHXbSvpHN2cE_jIguohBcSoyhjL5I3MbCg
  • google-site-verification=pdR2KDAjXJQfUojkq1iT4gGUsJUO69AfkwUXqL5VyBA
  • pardot1061472=5bf0ab13829090f586a891e627e339cbedb30105b2329db5a05bfd157802718f
  • postman-domain-verification=6a866c4518c0f1091cb0c3f460b64746fe3db8ed69a5478c11e284277f970b079ab1bb8c631999a85bd2a391b29df536f8dfc5a1c9927d0f12b2fa061e0d180e
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