Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
markelcorp.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-18 05:19:11 UTC · ↺ Refresh
MX Hostnames
- markelcorp-com.mail.protection.outlook.com
MX Priorities
- markelcorp-com.mail.protection.outlook.com: 50
A / AAAA Records
- 204.74.99.103 (no PTR)
Mail Server IPs
- 52.101.41.21 ↩ mail-sj2pr05cu00305.inbound.protection.outlook.com
- 52.101.9.5 ↩ mail-mn2pr04cu00205.inbound.protection.outlook.com
- 52.101.194.12 ↩ mail-ch0pr04cu00504.inbound.protection.outlook.com
- 52.101.11.3 ↩ mail-sn1pr0501cu00103.inbound.protection.outlook.com
- 2a01:111:f403:c902::5 ↩ mail-sj2pr05cu00505.inbound.protection.outlook.com
- 2a01:111:f403:c902::16 ↩ mail-byapr04cu00306.inbound.protection.outlook.com
- 2a01:111:f403:c92c::1 ↩ mail-dm6pr03cu00401.inbound.protection.outlook.com
- 2a01:111:f403:f910:: ↩ mail-cy5pr03cu00300.inbound.protection.outlook.com
SOA Record
Raw SOA
edns3.ultradns.com premiumdns.support.neustar 2019112379 28800 7200 1209600 86400
Primary NS (mname)
edns3.ultradns.com
Admin Email (rname)
premiumdns@support.neustar
Serial
2019112379
Refresh
28800s
Retry
7200s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
edns3.ultradns.biz
edns3.ultradns.com
edns3.ultradns.net
edns3.ultradns.org
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com include:mailcontrol.com include:spf1.markelcorp.com include:spf2.markelcorp.com include:spf3.markelcorp.com -all
📊 DNS lookups: 5/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; rua=mailto:[email protected], mailto:[email protected];
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected], 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
10 records- WRO4vPiJV8u3czp+9WoHEmlMEbcMyOGX544PZEaVhIXoqsXBsJfjT8j7qs4PStxLEXt3aRfG36YgmnncS8L5vQ==
- cisco-ci-domain-verification=68586c6772a64aa9531f7eb3f5427363d9b7d3173f1c58fe9b7801f3ff0ad03e
- SPFv=spf1 include:spf.protection.outlook.com include:mailcontrol.com include:spf1.markelcorp.com include:spf2.markelcorp.com include:spf3.markelcorp.com -all
- MS=ms13589435
- dropbox-domain-verification=rh425x7zb904
- docusign=a6894dad-f4c8-4d75-853e-c786d9817a45
- teamviewer-sso-verification=dec559a59687413bb7460b8f0267f27d
- B9D92ABD622FF8816DFF049F0404802631143BEA37CBD133D2780FD0BB7567D6
- google-site-verification=4ZUXQyjVfzRkJKx7CP1xamab_QqAX7sVeEtK2pHns5g
- RT51KJBB5yGlhkTolDqV563pIbn0Ru2r6ei+NzxTTKW2VtMNpkEIAl2wV9nyCrPI96DDBJQVb6ciQ8ttQqp/UA==
Full email verification for markelcorp.com
Run SMTP check, SPF/DKIM/DMARC and catch-all detection.
SPF / DKIM / DMARC Get 1,000 Free Credits