mathmec.com

Valid Email Server
Domain Lookup › mathmec.com

Domain Overview

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

Checked via [email protected] · 2026-03-19 10:59:52 UTC · ↺ Refresh

MX Hostnames

  • mathmec-com.mail.protection.outlook.com

MX Priorities

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

A / AAAA Records

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

Mail Server IPs

  • 52.101.10.5 ↩ mail-bn6pr04cu00105.inbound.protection.outlook.com
  • 52.101.40.6 ↩ mail-cy1pr03cu00106.inbound.protection.outlook.com
  • 52.101.9.11 ↩ mail-bl2pr04cu00103.inbound.protection.outlook.com
  • 52.101.40.4 ↩ mail-cy5pr03cu00204.inbound.protection.outlook.com
  • 2a01:111:f403:c902::4 ↩ mail-sj0pr03cu01504.inbound.protection.outlook.com
  • 2a01:111:f403:f802:: ↩ mail-byapr05cu00400.inbound.protection.outlook.com
  • 2a01:111:f403:f901::1 ↩ mail-bl0pr02cu00601.inbound.protection.outlook.com
  • 2a01:111:f403:c902::5 ↩ mail-sj2pr05cu00505.inbound.protection.outlook.com

SOA Record

Raw SOA ns19.worldnic.com namehost.worldnic.com 125111811 10800 3600 604800 3600
Primary NS (mname)
ns19.worldnic.com
Admin Email (rname)
namehost@worldnic.com
Serial
125111811
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
3600s

Nameservers (NS)

ns19.worldnic.com
ns20.worldnic.com

SPF Record

✓ Strict (-all)
v=spf1 ip4:24.206.44.194 include:spf.protection.outlook.com include:_spf.cmsa.buildops.com -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✗ Missing

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

DKIM Selectors

✓ 2 found
selector1._domainkey
selector2._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

4 records
  • apple-domain-verification=bwwfvcuD0ZTXNJlM
  • tgej3o6ff6b3ja99oirlmq8cl4
  • pi0j53qsk75r05dcm4l4m08iko
  • SPFv=spf1 ip4:24.206.44.194 include:spf.protection.outlook.com include:_spf.cmsa.buildops.com -all
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