grummanbutkus.com

Valid Email Server

Domain Overview

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

Checked via [email protected] · 2026-03-21 04:30:36 UTC · ↺ Refresh

MX Hostnames

  • grummanbutkus-com.mail.protection.outlook.com

MX Priorities

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

A / AAAA Records

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

Mail Server IPs

  • 52.101.40.4 ↩ mail-cy5pr03cu00204.inbound.protection.outlook.com
  • 52.101.9.0 ↩ mail-bl2pr02cu00100.inbound.protection.outlook.com
  • 52.101.41.6 ↩ mail-sj0pr03cu01406.inbound.protection.outlook.com
  • 52.101.41.21 ↩ mail-sj2pr05cu00305.inbound.protection.outlook.com
  • 2a01:111:f403:c801::1 ↩ mail-sn1pr0501cu00101.inbound.protection.outlook.com
  • 2a01:111:f403:c946::4 ↩ mail-ch0pr04cu00504.inbound.protection.outlook.com
  • 2a01:111:f403:f905::4 ↩ mail-dm2pr04cu00404.inbound.protection.outlook.com
  • 2a01:111:f403:c902::7 ↩ mail-sj0pr02cu00107.inbound.protection.outlook.com

SOA Record

Raw SOA ns17.domaincontrol.com dns.jomax.net 2026011300 28800 7200 1209600 600
Primary NS (mname)
ns17.domaincontrol.com
Admin Email (rname)
dns@jomax.net
Serial
2026011300
Refresh
28800s
Retry
7200s
Expire
1209600s
Minimum TTL
600s

Nameservers (NS)

ns18.domaincontrol.com
ns17.domaincontrol.com

SPF Record

✓ Soft Fail (~all)
v=spf1 include:spf.protection.outlook.com include:relay.mailchannels.net ip4:167.89.11.197 ~all
📊 DNS lookups: 2/10
~ Soft fail (~all) — moderate enforcement

DMARC Record

✓ Reject
v=DMARC1; p=reject; rua=mailto:[email protected]; ruf=mailto:[email protected]; sp=none; fo=1;
✓ Reject — strongest protection
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: none

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

3 records
  • duo_sso_verification=zLGo3pRiJA407hRGFl0PqWFMFBKcW9HCsHHKr0J5YnD5oYrcQ6MQnoCkHRWMZ2vH
  • google-site-verification=aOv8YKBVneG-HlS6hOYa6zvLY1SPySiOEVnTUJIoFL0
  • SPFv=spf1 include:spf.protection.outlook.com include:relay.mailchannels.net ip4:167.89.11.197 ~all
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