Domain Overview
DNS: ✓ 1h ago
Checker: ✓ 1h ago
graytechintl.com
Yes
✓ Yes
Barracuda
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-05-21 01:38:30 UTC · ↺ Refresh
MX Hostnames
- d252062b.ess.barracudanetworks.com
- d252062a.ess.barracudanetworks.com
MX Priorities
- d252062a.ess.barracudanetworks.com: 0
- d252062b.ess.barracudanetworks.com: 10
A / AAAA Records
- 64.29.145.9 ↩ hostedc25.carrierzone.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.carrierzone.com postmaster.carrierzone.com 2023022214 86400 86400 3600000 86400
Primary NS (mname)
ns1.carrierzone.com
Admin Email (rname)
postmaster@carrierzone.com
Serial
2023022214
Refresh
86400s
Retry
86400s
Expire
3600000s
Minimum TTL
86400s
Nameservers (NS)
ns2.carrierzone.com
ns1.carrierzone.com
ns4.carrierzone.com
ns3.carrierzone.com
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ MissingNo DMARC record — emails cannot be rejected on auth failure.
DKIM Selectors
✗ None detectedNo DKIM records found for common selectors — your provider may use a custom selector name.
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
2 records- MS=ms24170601
- SPFv=spf1 include:spf.protection.outlook.com -all
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