denvercollegeofnursing.edu

Valid Email Server
Domain Lookup › denvercollegeofnursing.edu

Domain Overview

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

Checked via [email protected] · 2026-03-19 13:09:55 UTC · ↺ Refresh

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MX Hostnames

  • d289931a.ess.barracudanetworks.com
  • d289931b.ess.barracudanetworks.com

MX Priorities

  • d289931b.ess.barracudanetworks.com: 20
  • d289931a.ess.barracudanetworks.com: 20

A / AAAA Records

  • 151.101.131.10 (no PTR)
  • 151.101.67.10 (no PTR)
  • 151.101.3.10 (no PTR)
  • 151.101.195.10 (no PTR)

Mail Server IPs

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

SOA Record

Raw SOA ns10.dnsmadeeasy.com dns.dnsmadeeasy.com 2009010753 43200 3600 1209600 180
Primary NS (mname)
ns10.dnsmadeeasy.com
Admin Email (rname)
dns@dnsmadeeasy.com
Serial
2009010753
Refresh
43200s
Retry
3600s
Expire
1209600s
Minimum TTL
180s

Nameservers (NS)

ns11.dnsmadeeasy.com
ns12.dnsmadeeasy.com
ns13.dnsmadeeasy.com
ns15.dnsmadeeasy.com
ns14.dnsmadeeasy.com
ns10.dnsmadeeasy.com

SPF Record

✓ Soft Fail (~all)
v=spf1 mx ip4:216.230.124.52/32 ip4:216.23.126.58/32 ip4:40.143.128.12/28 ip4:40.143.137.192/32 ip4:216.230.101.186/32 ip4:35.202.40.161 include:spf.dynect.net include:servers.mcsv.net include:spf.protection.outlook.com include:bounce.vanillasoft.net include:spf.mandrillapp.com include:spf.ess.barracudanetworks.com ~all
📊 DNS lookups: 7/10
~ Soft fail (~all) — moderate enforcement

DMARC Record

✓ Reject
v=DMARC1; p=reject; fo=1; pct=100; rua=mailto:[email protected]; ruf=mailto:[email protected]
✓ Reject — strongest protection
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]

DKIM Selectors

✓ 5 found
selector1._domainkey
selector2._domainkey
k1._domainkey
s1._domainkey
s2._domainkey
✓ Public key: 392 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

10 records
  • x2sc94vzx2dyyqgmv7lsq151ns5jprlb
  • 26s819100jcvbp9tmajn4stuka
  • google-site-verification=9oAoWQQRx2LE7WXtbJ0plgCXRapqT3wZdGy-ln6hijY
  • docusign=f4b9ad5a-e8a1-4606-bad6-1b848c9a3a6c
  • SPFv=spf1 mx ip4:216.230.124.52/32 ip4:216.23.126.58/32 ip4:40.143.128.12/28 ip4:40.143.137.192/32 ip4:216.230.101.186/32 ip4:35.202.40.161 include:spf.dynect.net include:servers.mcsv.net include:spf.protection.outlook.com include:bounce.vanillasoft.net include:spf.mandrillapp.com include:spf.ess.barracudanetworks.com ~all
  • facebook-domain-verification=e6nvgwiosl4lp21toyblljce1yr0ji
  • google-site-verification=UGxwg1Y9kYEK9qFMUCeuol2uwyZYZjZS0oq35BFrGPg
  • MS=ms40935872
  • google-site-verification=QbSZwjTvyoVJojqrNxQGI3R-fo3Ixd2pHE6CRNRKFaE
  • DMARCv=DMARC1; p=none; rua=mailto:[email protected]; ruf=mailto:[email protected]; fo=1;
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