sierraspace.com

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

Domain Overview

DNS: ⚡ live Checker: ⚡ live
sierraspace.com
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-05-21 21:23:26 UTC · ↺ Refresh

MX Hostnames

  • sierraspace.mail.protection.office365.us

MX Priorities

No priority data.

A / AAAA Records

  • 52.85.31.84
  • 52.85.31.44
  • 52.85.31.41
  • 52.85.31.82
  • 2600:9000:2026:3800:6:7a31:d780:93a1
  • 2600:9000:2026:6600:6:7a31:d780:93a1
  • 2600:9000:2026:2a00:6:7a31:d780:93a1
  • 2600:9000:2026:5a00:6:7a31:d780:93a1
  • 2600:9000:2026:d200:6:7a31:d780:93a1
  • 2600:9000:2026:6c00:6:7a31:d780:93a1
  • 2600:9000:2026:4200:6:7a31:d780:93a1
  • 2600:9000:2026:da00:6:7a31:d780:93a1

Mail Server IPs

No IPs resolved.

SOA Record

No SOA record found.

Nameservers (NS)

nsgbr.comlaude.co.uk
nssui.comlaude.ch
nsusa.comlaude.net

SPF Record

✓ Strict (-all)
v=spf1 +ip4:20.141.137.6 +ip4:35.208.169.23 +ip4:216.87.77.212 +ip4:216.87.77.217 include:amazonses.com include:mailgun.org include:_spf.mailspamprotection.com include:spf.protection.office365.us -all
📊 DNS lookups: 4/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✗ p=none
v=DMARC1; p=none; fo=1; rua=mailto:[email protected]; ruf=mailto:[email protected]
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]

DKIM Selectors

✓ 2 found
selector1._domainkey
selector2._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: selector1

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

All TXT Records

11 records
  • smartsheet-site-validation=7sYKk5Gir21Itqd4VdmD8U2iUdiTL8IR
  • bluebeam-verification=4qjsbh5lxt17ipfdhdek4luj3qbzos
  • atlassian-domain-verification=OOGZuLGSS8Bn/JnCIf2aODbiD7fCWEauuPeRDcustebX139pP4PmUm6MRiQ5Yz2v
  • adobe-idp-site-verification=277b898e49099b3c092f0d9fae7d5f11429ee75003dbdba4612210fd8b7fe427
  • SPFv=spf1 +ip4:20.141.137.6 +ip4:35.208.169.23 +ip4:216.87.77.212 +ip4:216.87.77.217 include:amazonses.com include:mailgun.org include:_spf.mailspamprotection.com include:spf.protection.office365.us -all
  • MS=ms43277396
  • l25l5dldtvrkh4ng92c2fz8vccq5wc7q
  • google-site-verification=jkWD8Dm-E09MX1ZBT5dQhrJ9R_dk28wVXa_bv9dmSK8
  • ZOOM_verify_0GAaPrFAsBOZb4P1B1kHBh
  • miro-verification=a093ad84674c8c9eda696296a0c186dea7c7899e
  • docker-verification=a6808d0c-ecda-4967-aea9-8f4e019c51bc
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