Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
rtaltd.com
Yes
✓ Yes
Barracuda
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-20 12:40:40 UTC · ↺ Refresh
MX Hostnames
- d131655b.ess.barracudanetworks.com
- d131655a.ess.barracudanetworks.com
MX Priorities
- d131655b.ess.barracudanetworks.com: 20
- d131655a.ess.barracudanetworks.com: 10
A / AAAA Records
- 198.49.23.145 (no PTR)
- 198.185.159.145 (no PTR)
- 198.185.159.144 (no PTR)
- 198.49.23.144 (no PTR)
Mail Server IPs
- 209.222.82.253 ↩ mail.ess.barracuda.com
- 209.222.82.255 ↩ mail.ess.barracuda.com
- 209.222.82.252 ↩ mail.ess.barracuda.com
SOA Record
Raw SOA
ns1.digitalspaceportal.net postmaster.carrierzone.com 2025102011 86400 300 3600000 300
Primary NS (mname)
ns1.digitalspaceportal.net
Admin Email (rname)
postmaster@carrierzone.com
Serial
2025102011
Refresh
86400s
Retry
300s
Expire
3600000s
Minimum TTL
300s
Nameservers (NS)
ns2.digitalspaceportal.net
ns1.digitalspaceportal.net
SPF Record
✓ Soft Fail (~all)
v=spf1 mx a ip4:216.55.149.40 include:spfc45.carrierzone.com include:spf.ess.barracudanetworks.com include:spf.protection.outlook.com ~all
📊 DNS lookups: 5/10
~ Soft fail (~all) — moderate 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=ms44621037
- SPFv=spf1 mx a ip4:216.55.149.40 include:spfc45.carrierzone.com include:spf.ess.barracudanetworks.com include:spf.protection.outlook.com ~all
Full email verification for rtaltd.com
Run SMTP check, SPF/DKIM/DMARC and catch-all detection.
SPF / DKIM / DMARC Get 1,000 Free Credits