dc3.edu

Valid Email Server
Domain Lookup › dc3.edu
Live data — DNS records and disposable check were just fetched and saved.

Domain Overview

DNS: ⚡ live Checker: ⚡ live
dc3.edu
Yes
✓ Yes
Barracuda
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-05-21 09:33:24 UTC · ↺ Refresh

MX Hostnames

  • d273829b.ess.barracudanetworks.com
  • d273829a.ess.barracudanetworks.com

MX Priorities

No priority data.

A / AAAA Records

  • 97.74.185.57

Mail Server IPs

No IPs resolved.

SOA Record

No SOA record found.

Nameservers (NS)

kic.kanren.net
nic.kanren.net

SPF Record

✓ Soft Fail (~all)
v=spf1 ip4:164.113.46.10 ip4:164.113.46.11 ip4:198.105.13.131 a:mbssmtp.mbsbooks.com include:spf.ess.barracudanetworks.com include:_spf.google.com include:spf.gaggle.net include:spf.protection.outlook.com include:us._extnetblocks.mimecast.com include:mbssmtp.mbsbooks.com ~all
📊 DNS lookups: 7/10
~ Soft fail (~all) — moderate enforcement

DMARC Record

✗ p=none
v=DMARC1; p=none; pct=100; rua=mailto:[email protected]; ruf=mailto:[email protected]; fo=1; aspf=r; adkim=r
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]

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
  • MS=E66EFAAB12242998AD334D6FE744C27DF53541EE
  • SPFv=spf1 ip4:164.113.46.10 ip4:164.113.46.11 ip4:198.105.13.131 a:mbssmtp.mbsbooks.com include:spf.ess.barracudanetworks.com include:_spf.google.com include:spf.gaggle.net include:spf.protection.outlook.com include:us._extnetblocks.mimecast.com include:mbssmtp.mbsbooks.com ~all
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