Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
intlconstserv.com
Yes
✓ Yes
Barracuda
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-23 07:08:12 UTC · ↺ Refresh
MX Hostnames
- d296927b.ess.barracudanetworks.com
- d296927a.ess.barracudanetworks.com
MX Priorities
- d296927a.ess.barracudanetworks.com: 0
- d296927b.ess.barracudanetworks.com: 1
A / AAAA Records
- 104.21.52.50 (no PTR)
- 172.67.195.145 (no PTR)
- 2606:4700:3037::ac43:c391 (no PTR)
- 2606:4700:3036::6815:3432 (no PTR)
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
kurt.ns.cloudflare.com dns.cloudflare.com 2397150084 10000 2400 604800 1800
Primary NS (mname)
kurt.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2397150084
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
linda.ns.cloudflare.com
kurt.ns.cloudflare.com
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com include:spf.ess.barracudanetworks.com -all
📊 DNS lookups: 2/10
✓ 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
3 records- SPFv=spf1 include:spf.protection.outlook.com include:spf.ess.barracudanetworks.com -all
- MS-ms82833284
- _globalsign-domain-verification=RDeL4SQSeBXl5g0aXjHIZYPEgbWf3WsLtcmpD8MQr8
Full email verification for intlconstserv.com
Run SMTP check, SPF/DKIM/DMARC and catch-all detection.
SPF / DKIM / DMARC Get 1,000 Free Credits