kellogg.edu

Valid Email Server
Domain Lookup › kellogg.edu

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
kellogg.edu
Yes
✓ Yes
Barracuda
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-30 02:38:24 UTC · ↺ Refresh

MX Hostnames

  • d226335b.ess.barracudanetworks.com
  • d226335a.ess.barracudanetworks.com

MX Priorities

  • d226335a.ess.barracudanetworks.com: 10
  • d226335b.ess.barracudanetworks.com: 20

A / AAAA Records

  • 104.26.7.234 (no PTR)
  • 104.26.6.234 (no PTR)
  • 172.67.75.72 (no PTR)
  • 2606:4700:20::681a:7ea (no PTR)
  • 2606:4700:20::681a:6ea (no PTR)
  • 2606:4700:20::ac43:4b48 (no PTR)

Mail Server IPs

  • 209.222.82.252 ↩ mail.ess.barracuda.com
  • 209.222.82.255 ↩ mail.ess.barracuda.com
  • 209.222.82.253 ↩ mail.ess.barracuda.com

SOA Record

Raw SOA brit.ns.cloudflare.com dns.cloudflare.com 2397433910 10000 2400 604800 1800
Primary NS (mname)
brit.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2397433910
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s

Nameservers (NS)

brit.ns.cloudflare.com
scott.ns.cloudflare.com

SPF Record

✓ Soft Fail (~all)
v=spf1 ip4:216.17.112.23 ip4:52.70.132.134 ip4:209.222.82.168 ip4:64.235.144.0/20 ip4:209.222.80.0/21 ip4:198.105.13.131 ip4:54.200.245.80 ip4:54.201.16.96 ip4:208.117.49.214 include:_spf.elasticemail.com include:sfsolutionsmail.com include:us._netblocks.mimecast.com include:mbssmtp.mbsbooks.com include:spf.sendinblue.com include:spf.ess.barracudanetworks.com include:spf.protection.outlook.com ~all
📊 DNS lookups: 7/10
~ Soft fail (~all) — moderate enforcement

DMARC Record

✓ Reject
v=DMARC1; p=reject; fo=1; rua=mailto:[email protected],mailto:[email protected]; ruf=mailto:[email protected]
✓ Reject — strongest protection
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
📧 Reports → mailto:[email protected],mailto:[email protected]

DKIM Selectors

✓ 3 found
selector1._domainkey
selector2._domainkey
mail._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

9 records
  • brevo-code:c3e74014bed281f9a074960c89b3247e
  • google-site-verification=0uolHBn-IPjQG9TgOR9k7JuFVnOQ_Jnr8QBQEWYidBI
  • google-site-verification=ux-kRfm5doCq0TRgJwlL8uDOLW81OX4XAUd0zD6QTmY
  • sophos-domain-verification=661734d56f243d70bc4dfd6cb4b98be99e9bdcda57c8f203534dc51e85bdb0b3
  • SPFv=spf1 ip4:216.17.112.23 ip4:52.70.132.134 ip4:209.222.82.168 ip4:64.235.144.0/20 ip4:209.222.80.0/21 ip4:198.105.13.131 ip4:54.200.245.80 ip4:54.201.16.96 ip4:208.117.49.214 include:_spf.elasticemail.com include:sfsolutionsmail.com include:us._netblocks.mimecast.com include:mbssmtp.mbsbooks.com include:spf.sendinblue.com include:spf.ess.barracudanetworks.com include:spf.protection.outlook.com ~all
  • 2o2u6e8pjc470k9je4uchognf4.
  • 3l31js58a28o9pvo8rlhb5e9de
  • 4r63ddbtadqb8b5qehj8005q42
  • MS=8E7DEF77DA335F33D6D1708525D11960EC7682C5
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