Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
mason-builders.com
Yes
✓ Yes
Barracuda
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-24 03:44:29 UTC · ↺ Refresh
MX Hostnames
- d317509b.ess.barracudanetworks.com
- d317509a.ess.barracudanetworks.com
MX Priorities
- d317509a.ess.barracudanetworks.com: 0
- d317509b.ess.barracudanetworks.com: 1
A / AAAA Records
- 38.95.129.245 ↩ nvme01s.midtownmicro.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
ns1.bdm.microsoftonline.com azuredns-hostmaster.microsoft.com 1 3600 300 2419200 300
Primary NS (mname)
ns1.bdm.microsoftonline.com
Admin Email (rname)
azuredns-hostmaster@microsoft.com
Serial
1
Refresh
3600s
Retry
300s
Expire
2419200s
Minimum TTL
300s
Nameservers (NS)
ns4.bdm.microsoftonline.com
ns1.bdm.microsoftonline.com
ns2.bdm.microsoftonline.com
ns3.bdm.microsoftonline.com
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com include:spf.digitalgear.net -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ MissingNo DMARC record — emails cannot be rejected on auth failure.
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._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
2 records- SPFv=spf1 include:spf.protection.outlook.com include:spf.digitalgear.net -all
- mscid=o/PPSluuJ5z7sNk7QNQVdxrtVF88Ju5tk9/05i2dbgtulxGWU3S9wOCP5AYodBOqpK4Kd93xUErGrqWAwgdD8g==
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