businessu.org

Valid Email Server

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
businessu.org
Yes
✓ Yes
Google
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-03-26 05:12:16 UTC · ↺ Refresh

MX Hostnames

  • alt2.aspmx.l.google.com
  • aspmx3.googlemail.com
  • aspmx.l.google.com
  • aspmx2.googlemail.com
  • alt1.aspmx.l.google.com

MX Priorities

  • alt2.aspmx.l.google.com: 5
  • aspmx.l.google.com: 1
  • aspmx2.googlemail.com: 10
  • aspmx3.googlemail.com: 10
  • alt1.aspmx.l.google.com: 5

A / AAAA Records

  • 108.139.29.2 ↩ server-108-139-29-2.jfk50.r.cloudfront.net
  • 108.139.29.34
  • 108.139.29.91
  • 108.139.29.77
  • 2600:9000:23ca:e800:f:1c3a:2300:93a1
  • 2600:9000:23ca::f:1c3a:2300:93a1
  • 2600:9000:23ca:e600:f:1c3a:2300:93a1
  • 2600:9000:23ca:200:f:1c3a:2300:93a1
  • 2600:9000:23ca:fc00:f:1c3a:2300:93a1
  • 2600:9000:23ca:2a00:f:1c3a:2300:93a1
  • 2600:9000:23ca:ae00:f:1c3a:2300:93a1
  • 2600:9000:23ca:8600:f:1c3a:2300:93a1

Mail Server IPs

  • 172.253.116.26 ↩ dj-in-f26.1e100.net
  • 2a00:1450:400b:c02::1b ↩ dj-in-f27.1e100.net
  • 142.251.111.27 ↩ bk-in-f27.1e100.net
  • 2607:f8b0:4004:c06::1b ↩ bg-in-f27.1e100.net
  • 108.177.123.27 ↩ lcscld-in-f27.1e100.net
  • 2800:3f0:4003:c0f::1a (no PTR)
  • 2a00:1450:400b:c02::1a ↩ dj-in-f26.1e100.net
  • 108.177.123.26 ↩ lcscld-in-f26.1e100.net
  • 2800:3f0:4003:c0f::1b (no PTR)

SOA Record

Raw SOA ns-1806.awsdns-33.co.uk awsdns-hostmaster.amazon.com 1 7200 900 1209600 86400
Primary NS (mname)
ns-1806.awsdns-33.co.uk
Admin Email (rname)
awsdns-hostmaster@amazon.com
Serial
1
Refresh
7200s
Retry
900s
Expire
1209600s
Minimum TTL
86400s

Nameservers (NS)

ns-1253.awsdns-28.org
ns-135.awsdns-16.com
ns-1806.awsdns-33.co.uk
ns-971.awsdns-57.net

SPF Record

✓ Soft Fail (~all)
v=spf1 include:_spf.google.com ~all
📊 DNS lookups: 1/10
~ Soft fail (~all) — moderate enforcement

DMARC Record

✗ p=none
v=DMARC1; p=none
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)

DKIM Selectors

✓ 3 found
google._domainkey
s1._domainkey
s2._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: google

Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses

All TXT Records

7 records
  • SPFv=spf1 include:_spf.google.com ~all
  • 1password-site-verification=X4MRDOB6FVDLJP2HBMW7ABTF3A
  • MS=ms59190888
  • MS=ms99568249
  • facebook-domain-verification=e6aiiw2je5ktguhnm5d5me8qhebt0o
  • google-site-verification=BZnx79BtEX2RjHyKM-3c9r9Xg_oKmkBNuPiuk2ji9Fk
  • google-site-verification=eomzFOD96k3ojvl5_p0yQbmGQWaCs2IDAoPeAMUcV4E
Full email verification for businessu.org

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