markone.com

Valid Email Server
Domain Lookup › markone.com

Domain Overview

DNS: ✓ 1d ago Checker: ✓ 1d ago
markone.com
Yes
✓ Yes
Barracuda
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-10-03 15:31:23 UTC · ↺ Refresh

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MX Hostnames

  • d270476b.ess.barracudanetworks.com
  • d270476a.ess.barracudanetworks.com

MX Priorities

  • d270476a.ess.barracudanetworks.com: 0
  • d270476b.ess.barracudanetworks.com: 5

A / AAAA Records

  • 192.16.172.128 (no PTR)
  • 198.185.159.144 (no PTR)
  • 198.185.159.145 (no PTR)
  • 192.16.172.127 (no PTR)

Mail Server IPs

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

SOA Record

Raw SOA ns0.dnsmadeeasy.com dns.dnsmadeeasy.com 2008010382 43200 3600 1209600 180
Primary NS (mname)
ns0.dnsmadeeasy.com
Admin Email (rname)
dns@dnsmadeeasy.com
Serial
2008010382
Refresh
43200s
Retry
3600s
Expire
1209600s
Minimum TTL
180s

Nameservers (NS)

ns1.dnsmadeeasy.com
ns3.dnsmadeeasy.com
ns0.dnsmadeeasy.com
ns2.dnsmadeeasy.com
ns4.dnsmadeeasy.com

SPF Record

✓ Soft Fail (~all)
v=spf1 ip4:107.170.69.128 ip4:173.197.20.2 include:spf.protection.outlook.com include:spf-us.emailsignatures365.com include:_spf.google.com exists:%{i}._spf.inkyphishfence.com include:spf.ess.barracudanetworks.com ~all
📊 DNS lookups: 5/10
~ Soft fail (~all) — moderate enforcement

DMARC Record

✗ p=none
v=DMARC1; p=none; rua=mailto:[email protected]; ruf=mailto:[email protected]; sp=none; fo=0;
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: none

DKIM Selectors

✓ 1 found
google._domainkey
✓ Public key: 216 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

4 records
  • MS=A71D37B1AACC06BF69891264B2C186A04C2A1DEC
  • MS=ms25588297
  • MS=ms23583651
  • SPFv=spf1 ip4:107.170.69.128 ip4:173.197.20.2 include:spf.protection.outlook.com include:spf-us.emailsignatures365.com include:_spf.google.com exists:%{i}._spf.inkyphishfence.com include:spf.ess.barracudanetworks.com ~all
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