linuxfoundation.org

Valid Email Server
Domain Lookup › linuxfoundation.org

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
linuxfoundation.org
Yes
✓ Yes
Google
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-27 14:21:45 UTC · ↺ Refresh

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MX Hostnames

  • smtp.google.com

MX Priorities

  • smtp.google.com: 1

A / AAAA Records

  • 3.131.150.69 ↩ ec2-3-131-150-69.us-east-2.compute.amazonaws.com

Mail Server IPs

  • 172.253.115.27 ↩ bg-in-f27.1e100.net
  • 172.253.62.26 ↩ bc-in-f26.1e100.net
  • 172.253.122.27 ↩ bh-in-f27.1e100.net
  • 172.253.115.26 ↩ bg-in-f26.1e100.net
  • 172.253.122.26 ↩ bh-in-f26.1e100.net
  • 2607:f8b0:4004:c09::1a ↩ bh-in-f26.1e100.net
  • 2607:f8b0:4004:c06::1a ↩ bg-in-f26.1e100.net
  • 2607:f8b0:4004:c07::1a ↩ bc-in-f26.1e100.net
  • 2607:f8b0:4004:c06::1b ↩ bg-in-f27.1e100.net

SOA Record

Raw SOA ns1.dnsimple.com admin.dnsimple.com 1557514268 86400 7200 604800 300
Primary NS (mname)
ns1.dnsimple.com
Admin Email (rname)
admin@dnsimple.com
Serial
1557514268
Refresh
86400s
Retry
7200s
Expire
604800s
Minimum TTL
300s

Nameservers (NS)

ns1.dnsimple.com
ns2.dnsimple-edge.net
ns3.dnsimple.com
ns4.dnsimple-edge.org

SPF Record

✓ Strict (-all)
v=spf1 ip4:72.55.140.81 ip4:208.117.49.186 include:_spf.kernel.org include:_spf.google.com include:amazonses.com include:_spf.salesforce.com include:8112310.spf10.hubspotemail.net -all
📊 DNS lookups: 5/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✗ p=none
v=DMARC1; p=none; rua=mailto:[email protected]
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]

DKIM Selectors

✓ 2 found
google._domainkey
selector1._domainkey
✓ Public key: 216 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

14 records
  • google-site-verification=7fAmztvM0wOJRENtNl_PJUeEd4eUJxORFZ_mntw_O7A
  • google-site-verification=a8A4fR7tzctgZOlQxocIsntJ1g8Z9cbs0n9Aa5nXNwY
  • h1-domain-verification=RW2zqC5Bj38rfdBSmzPtCSS1TNKA3A9ECMCtd3PnLJ1FjkyF
  • hubspot-developer-verification=MWI3OGJhN2ItZmEyNi00Y2YwLWFhY2ItNTk1MjY0ZGNjNDk4
  • SPFv=spf1 ip4:72.55.140.81 ip4:208.117.49.186 include:_spf.kernel.org include:_spf.google.com include:amazonses.com include:_spf.salesforce.com include:8112310.spf10.hubspotemail.net -all
  • 9484b892358a64444745dd08fa0ab81b
  • D4A3BBDF34
  • ZOOM_verify_p8ePICiOQgaSJHn-6yQBPg
  • anthropic-domain-verification-sq0ey1=XppeaJedG8KD2nK8ldjCeokcn
  • google-site-verification=ePAjH3vCphIY2_rgMHImyk1COdKj1vawgxFn7V_TMGc
  • segment-site-verification=yPsODPJsnI9Rrj0xOCoR0yWIEaZqYfcN
  • sprout-social-8e0eec3a-98cb-4149-8898-17ecfd1bf5bf
  • asv=c1fdffadb0fd615cad7c3830edd07ed4
  • facebook-domain-verification=qszecvsg1sxiy6ula1zumzw4z247ra
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