drshermak.com

Valid Email Server
Domain Lookup › drshermak.com

Domain Overview

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

Checked via [email protected] · 2026-03-23 01:31:41 UTC · ↺ Refresh

MX Hostnames

  • drshermak-com.mail.protection.outlook.com

MX Priorities

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

A / AAAA Records

  • 172.67.184.2 (no PTR)
  • 104.21.83.251 (no PTR)
  • 2606:4700:3034::ac43:b802
  • 2606:4700:3035::6815:53fb

Mail Server IPs

  • 52.101.10.12 ↩ mail-bn1pr21cu00204.inbound.protection.outlook.com
  • 52.101.41.6 ↩ mail-sj0pr03cu01406.inbound.protection.outlook.com
  • 52.101.50.1 ↩ mail-co1pr05cu00401.inbound.protection.outlook.com
  • 40.93.192.1 ↩ mail-dm5pr02cu00201.inbound.protection.outlook.com
  • 2a01:111:f403:c946::2 ↩ mail-ch4pr04cu00102.inbound.protection.outlook.com
  • 2a01:111:f403:c927::1 ↩ mail-bn8pr05cu00301.inbound.protection.outlook.com
  • 2a01:111:f403:c936:: ↩ mail-cy1pr05cu00400.inbound.protection.outlook.com
  • 2a01:111:f403:f909:: ↩ mail-bn6pr04cu00200.inbound.protection.outlook.com

SOA Record

Raw SOA lynn.ns.cloudflare.com dns.cloudflare.com 2399618302 10000 2400 604800 1800
Primary NS (mname)
lynn.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2399618302
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s

Nameservers (NS)

lynn.ns.cloudflare.com
robin.ns.cloudflare.com

SPF Record

✓ Strict (-all)
v=spf1 include:secureserver.net -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
  • NETORGFT8755645.onmicrosoft.com
  • google-site-verification=Qb9LEqYz4v_XNOttg9Kyn8MLWLQJQOTq_SwC8-ZO44k
  • google-site-verification=fg6qQjus3G27B_UjDSHlgzVazsMNi6XKdJnihm_NFko
  • SPFv=spf1 include:secureserver.net -all
Full email verification for drshermak.com

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