drcritter.com

Valid Email Server
Domain Lookup › drcritter.com

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
drcritter.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-28 14:22:42 UTC · ↺ Refresh

MX Hostnames

  • drcritter-com.mail.protection.outlook.com

MX Priorities

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

A / AAAA Records

  • 104.21.74.23 (no PTR)
  • 172.67.153.109 (no PTR)
  • 2606:4700:3032::6815:4a17
  • 2606:4700:3035::ac43:996d

Mail Server IPs

  • 52.101.9.14 ↩ mail-bl0pr03cu00206.inbound.protection.outlook.com
  • 52.101.41.54 ↩ mail-sj2pr05cu00506.inbound.protection.outlook.com
  • 52.101.40.4 ↩ mail-cy5pr03cu00204.inbound.protection.outlook.com
  • 52.101.194.12 ↩ mail-ch0pr04cu00504.inbound.protection.outlook.com
  • 2a01:111:f403:c801:: ↩ mail-sa9pr02cu00200.inbound.protection.outlook.com
  • 2a01:111:f403:f90d::1 ↩ mail-sn1pr0501cu00301.inbound.protection.outlook.com
  • 2a01:111:f403:f90f:: ↩ mail-sa9pr04cu00100.inbound.protection.outlook.com
  • 2a01:111:f403:f912:: ↩ mail-cy5pr03cu00200.inbound.protection.outlook.com

SOA Record

Raw SOA marge.ns.cloudflare.com dns.cloudflare.com 2399353111 10000 2400 604800 1800
Primary NS (mname)
marge.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2399353111
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s

Nameservers (NS)

marge.ns.cloudflare.com
oswald.ns.cloudflare.com

SPF Record

✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✗ Missing

No DMARC record — emails cannot be rejected on auth failure.

DKIM Selectors

✗ None detected

No DKIM records found for common selectors — your provider may use a custom selector name.

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

All TXT Records

4 records
  • SPFv=spf1 include:spf.protection.outlook.com -all
  • NETORGFT2205291.onmicrosoft.com
  • google-site-verification=HY80V3ZdZq_Cu_vsvVO-51MY_hlv0sZpeMNqXn3Sf1U
  • mgrf72n5vokoo6ava8edetiol1
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