nctc.edu

Valid Email Server
Domain Lookup › nctc.edu

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
nctc.edu
Yes
✓ Yes
Barracuda
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-03-23 23:45:30 UTC · ↺ Refresh

MX Hostnames

  • d154403b.ess.barracudanetworks.com
  • d154403a.ess.barracudanetworks.com

MX Priorities

  • d154403b.ess.barracudanetworks.com: 20
  • d154403a.ess.barracudanetworks.com: 10

A / AAAA Records

  • 166.117.161.202 ↩ a704f8aa8e61ec451.awsglobalaccelerator.com
  • 75.2.39.172 ↩ a704f8aa8e61ec451.awsglobalaccelerator.com

Mail Server IPs

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

SOA Record

Raw SOA ns1.empiricalnetworks.com.com dns.empiricalnetworks.com 2026030202 10800 3600 604800 86400
Primary NS (mname)
ns1.empiricalnetworks.com.com
Admin Email (rname)
dns@empiricalnetworks.com
Serial
2026030202
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
86400s

Nameservers (NS)

ns1.empiricalnetworks.com
ns2.empiricalnetworks.com

SPF Record

✓ Strict (-all)
v=spf1 mx a:barracuda.nctc.edu a:hobsonsmail.com include:_spf.salesforce.com include:spf1.formassembly.com include:outboundmail.blackbaud.net -all
📊 DNS lookups: 6/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✗ Missing

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

DKIM Selectors

✓ 2 found
s1._domainkey
s2._domainkey
✓ DKIM properly configured for selector: s1

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

All TXT Records

12 records
  • cisco-ci-domain-verification=541a16bcdc9747526724c78aa3f995b170962e6d345e0325dce59126783eee35
  • SPFv=spf1 mx a:barracuda.nctc.edu a:hobsonsmail.com include:_spf.salesforce.com include:spf1.formassembly.com include:outboundmail.blackbaud.net -all
  • t7nk5db1ko83k0cbvi05p253v
  • adobe-idp-site-verification=f90a8cf357ddf4fa256aae998473caf07944b6af135f9e0bdebae4062c9aea6d
  • google-site-verification=3Rm-y4Gxn-ek7IPmzjSmjXEPbSZ_2fdSxAIKPfxYKlg
  • v=ms1 t=67b09c952a5c4693acafbdafc0d4a6
  • MS=4EFA1EF6AA125E384A6517DCD739C76337038D70
  • u983dkqbh9evmg612fobugh4fd
  • ds6mfc84hppau7859r57ascne0
  • 1s2ct4d4qiqbpfmeb5fktrefdh
  • CODUWJDTHHX91YTE7X07T75HJ5L1KKOUDJLNNHX6Z
  • amazon-business-verification=2461e1d1592d44b5d246e5605edc04380d9285478b8cd26849c8bb5f9ca46c9d
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