chainguard.dev

Valid Email Server

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
chainguard.dev
Yes
✓ Yes
Google
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-04-02 06:24:02 UTC · ↺ Refresh

MX Hostnames

  • alt3.aspmx.l.google.com
  • alt2.aspmx.l.google.com
  • alt1.aspmx.l.google.com
  • aspmx.l.google.com
  • alt4.aspmx.l.google.com

MX Priorities

  • alt4.aspmx.l.google.com: 10
  • aspmx.l.google.com: 1
  • alt2.aspmx.l.google.com: 5
  • alt3.aspmx.l.google.com: 10
  • alt1.aspmx.l.google.com: 5

A / AAAA Records

  • 76.76.21.21

Mail Server IPs

  • 173.194.76.26 ↩ ws-in-f26.1e100.net
  • 2a00:1450:400c:c00::1a ↩ ws-in-f26.1e100.net
  • 142.251.167.26 ↩ ww-in-f26.1e100.net
  • 2607:f8b0:4004:c06::1a ↩ bg-in-f26.1e100.net
  • 172.253.116.27 ↩ dj-in-f27.1e100.net
  • 2a00:1450:400b:c02::1a ↩ dj-in-f26.1e100.net
  • 192.178.223.26 ↩ yulhrs-in-f26.1e100.net
  • 2a00:1450:4009:c0f::1b ↩ yulhrs-in-f27.1e100.net
  • 108.177.123.26 ↩ lcscld-in-f26.1e100.net
  • 2800:3f0:4003:c0f::1a (no PTR)

SOA Record

Raw SOA ns-cloud-c1.googledomains.com cloud-dns-hostmaster.google.com 95 21600 3600 259200 300
Primary NS (mname)
ns-cloud-c1.googledomains.com
Admin Email (rname)
cloud-dns-hostmaster@google.com
Serial
95
Refresh
21600s
Retry
3600s
Expire
259200s
Minimum TTL
300s

Nameservers (NS)

ns-cloud-c3.googledomains.com
ns-cloud-c1.googledomains.com
ns-cloud-c4.googledomains.com
ns-cloud-c2.googledomains.com

SPF Record

✓ Soft Fail (~all)
v=spf1 include:mail.zendesk.com include:21744766.spf06.hubspotemail.net include:_spf.google.com ~all
📊 DNS lookups: 3/10
~ Soft fail (~all) — moderate enforcement

DMARC Record

~ Quarantine
v=DMARC1; p=quarantine; pct=100; rua=mailto:[email protected],mailto:[email protected]; sp=none; aspf=r;
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
📧 Reports → mailto:[email protected],mailto:[email protected]
↳ Subdomain policy: none

DKIM Selectors

✓ 3 found
google._domainkey
s1._domainkey
s2._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
  • google-site-verification=U_dJTE86SWAcb6LrSkGutTiufm1hJWMppfQFZ1kZsds
  • ZOOM_verify_5Kw8ygrzuIy0ZHrVAHPrSs
  • hubspot-domain-verification=OTExYzA4MGYtOTQzYS00NjdlLWI2ZWEtMWFkMGRmMzlhZGNj
  • google-site-verification=exuql4GlTVQ5iwYvBB_l3ZUiYXrGgSem8CWx0yC9zyI
  • SPFv=spf1 include:mail.zendesk.com include:21744766.spf06.hubspotemail.net include:_spf.google.com ~all
  • docker-verification=24fe39cc-0b16-49a3-aa32-53f610f8cb0b
  • MS=ms37278482
  • cisco-ci-domain-verification=1b9139a5ca723ec7dd7d2d19e677d3a2b1d72fe51fcd648940f346f154588022
  • atlassian-domain-verification=kPw2VJJvkxUcTVRoO4FJJDi1/cFjRAMvkCjopQZq2EfQLFdbsHtZrkv1bqAAzJjs
  • canva-site-verification=JIwXjY4dAs00GMy03JNOLg
  • docusign=e2fcba6b-4489-4d62-8725-275149c6a0d0
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