Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
reiengineers.com
Yes
✓ Yes
Barracuda
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-31 17:10:20 UTC · ↺ Refresh
MX Hostnames
- d340778b.ess.barracudanetworks.com
- d340778a.ess.barracudanetworks.com
MX Priorities
- d340778a.ess.barracudanetworks.com: 10
- d340778b.ess.barracudanetworks.com: 20
A / AAAA Records
- 172.67.135.79 (no PTR)
- 104.21.6.217 (no PTR)
- 2606:4700:3036::ac43:874f (no PTR)
- 2606:4700:3031::6815:6d9 (no PTR)
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
david.ns.cloudflare.com dns.cloudflare.com 2398656288 10000 2400 604800 1800
Primary NS (mname)
david.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2398656288
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
izabella.ns.cloudflare.com
david.ns.cloudflare.com
SPF Record
✓ Strict (-all)
v=spf1 include:spf.ess.barracudanetworks.com include:spf.protection.outlook.com -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; fo=1; rua=mailto:[email protected]; ruf=mailto:[email protected]
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._domainkey
✓ Public key: 216 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
5 records- SPFv=spf1 include:spf.ess.barracudanetworks.com include:spf.protection.outlook.com -all
- MS=ms60814343
- apple-domain-verification=DZ7ZywayiVKKjNjh
- google-site-verification=iGDWnhKzZqU4629GONPZSuOaBOSOhyPHxMeMAbYLE-g
- ppe-22bd745898041d2cf7bc
Full email verification for reiengineers.com
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