markthomas.com

Valid Email Server
Domain Lookup › markthomas.com

Domain Overview

DNS: ✓ 20d ago Checker: ✓ 20d ago
markthomas.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-05-21 00:14:53 UTC · ↺ Refresh

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MX Hostnames

  • markthomas-com.mail.protection.outlook.com

MX Priorities

  • markthomas-com.mail.protection.outlook.com: 0

A / AAAA Records

  • 141.193.213.11 (no PTR)
  • 141.193.213.10 (no PTR)

Mail Server IPs

  • 52.101.41.4 ↩ mail-sj2pr05cu00204.inbound.protection.outlook.com
  • 52.101.9.20 ↩ mail-bl0pr02cu00604.inbound.protection.outlook.com
  • 52.101.194.19 ↩ mail-ch5pr02cu00303.inbound.protection.outlook.com
  • 52.101.41.56 ↩ mail-sj0pr21cu00100.inbound.protection.outlook.com
  • 2a01:111:f403:f90a:: ↩ mail-bn6pr02cu00300.inbound.protection.outlook.com
  • 2a01:111:f403:c946:: ↩ mail-ch5pr02cu00200.inbound.protection.outlook.com
  • 2a01:111:f403:f902::1 ↩ mail-bl2pr02cu00101.inbound.protection.outlook.com
  • 2a01:111:f403:f908::2 ↩ mail-bn8pr05cu00102.inbound.protection.outlook.com

SOA Record

Raw SOA ns17.worldnic.com namehost.worldnic.com 126050718 10800 3600 604800 3600
Primary NS (mname)
ns17.worldnic.com
Admin Email (rname)
namehost@worldnic.com
Serial
126050718
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
3600s

Nameservers (NS)

ns17.worldnic.com
ns18.worldnic.com

SPF Record

✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com include:sendgrid.net -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✗ p=none
v=DMARC1; p=none; pct=100; rua=mailto:[email protected]; ruf=mailto:[email protected]; ri=86400
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]

DKIM Selectors

✓ 4 found
selector1._domainkey
selector2._domainkey
s1._domainkey
s2._domainkey
✓ Public key: 216 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

8 records
  • rhino_accounts=fceef0f9b2def09778f8c1e20a902446
  • autodesk-domain-verification=zVOO_M8Xhsi8KuXqtrLq
  • k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDgO/Yw1GMcI6O5tL0bLxGCGjNtDVGUru3RetkHqbXmVq53QbtMGLJaWUoGnKBGlCdag6XvwmgaYIGGZUkFyiKHhnzL6Wd3V23vullf8CPdzaZGIjXKax4ibVV3NZWTeULW6+Tlqmlm/5V1Ki+W+pjyJ4aEyzqrCKfe6rkwuO4LPQIDAQAB
  • KcuVNEhlSPszVTwk1s9M55K6UQNGUulG
  • MS=ms62001431
  • miro-verification=335beafbf03077823248ad70dd0cd59171dccbd2
  • SPFv=spf1 include:spf.protection.outlook.com include:sendgrid.net -all
  • google-site-verification=Durt9J96_aC3OJRXt3ra35UaROAcR9It8-6nUZ_kQMw
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