Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
c21stores.com
Yes
✓ Yes
Barracuda
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-19 01:06:08 UTC · ↺ Refresh
MX Hostnames
- d241264a.ess.barracudanetworks.com
- d241264b.ess.barracudanetworks.com
MX Priorities
- d241264b.ess.barracudanetworks.com: 20
- d241264a.ess.barracudanetworks.com: 10
A / AAAA Records
- 23.227.38.65 ↩ myshopify.com
Mail Server IPs
- 209.222.82.255 ↩ mail.ess.barracuda.com
- 209.222.82.252 ↩ mail.ess.barracuda.com
- 209.222.82.253 ↩ mail.ess.barracuda.com
SOA Record
Raw SOA
ns7.worldnic.com namehost.worldnic.com 125100315 10800 3600 604800 3600
Primary NS (mname)
ns7.worldnic.com
Admin Email (rname)
namehost@worldnic.com
Serial
125100315
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
3600s
Nameservers (NS)
ns8.worldnic.com
ns7.worldnic.com
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com include:spf.ess.barracudanetworks.com include:shops.shopify.com -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; fo=1; rua=mailto:[email protected],mailto:[email protected]; ruf=mailto:[email protected],mailto:[email protected]
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected],mailto:[email protected]
DKIM Selectors
✓ 4 found
selector1._domainkey
selector2._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
4 records- SPFv=spf1 include:spf.protection.outlook.com include:spf.ess.barracudanetworks.com include:shops.shopify.com -all
- klaviyo-site-verification=W3vJ6R
- google-site-verification=MPPKNo5l1n8r3-4vSok8eGYsBEnkBgQ1QPEjgmpsihw
- klaviyo-site-verification=XFnz25
Full email verification for c21stores.com
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