mentorcorp.com

Valid Email Server
Domain Lookup › mentorcorp.com

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
mentorcorp.com
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-04-02 14:56:35 UTC · ↺ Refresh

MX Hostnames

  • mx1.jnj-sd.iphmx.com
  • mx2.jnj-sd.iphmx.com

MX Priorities

  • mx1.jnj-sd.iphmx.com: 5
  • mx2.jnj-sd.iphmx.com: 5

A / AAAA Records

  • 172.64.152.208 (no PTR)
  • 104.18.35.48 (no PTR)
  • 2a06:98c1:3108::6812:2330 (no PTR)
  • 2a06:98c1:310b::ac40:98d0 (no PTR)

Mail Server IPs

  • 139.138.57.213 ↩ esa.jnj-sd.iphmx.com
  • 207.54.86.72 ↩ esa.jnj-sd.iphmx.com

SOA Record

Raw SOA dns1.p01.nsone.net hostmaster.nsone.net 1718110672 7200 7200 2592000 1800
Primary NS (mname)
dns1.p01.nsone.net
Admin Email (rname)
hostmaster@nsone.net
Serial
1718110672
Refresh
7200s
Retry
7200s
Expire
2592000s
Minimum TTL
1800s

Nameservers (NS)

ns04.jnjdns.com
dns1.p01.nsone.net
dns2.p01.nsone.net
dns3.p01.nsone.net
dns4.p01.nsone.net
ns01.jnjdns.com
ns02.jnjdns.com
ns03.jnjdns.com

SPF Record

✓ Strict (-all)
v=spf1 include:_u.mentorcorp.com._spf.smart.ondmarc.com -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✓ Reject
v=DMARC1; p=reject; pct=100; sp=quarantine; rua=mailto:[email protected]; ruf=mailto:[email protected]; adkim=r; aspf=r; fo=1; rf=afrf; ri=3600
✓ Reject — strongest protection
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: quarantine

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

2 records
  • SPFv=spf1 include:_u.mentorcorp.com._spf.smart.ondmarc.com -all
  • MS=ms89951655
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