Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
mastermechanicalair.com
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-19 12:51:39 UTC · ↺ Refresh
MX Hostnames
- ns4.chameleonsys.com
MX Priorities
- ns4.chameleonsys.com: 5
A / AAAA Records
- 129.158.231.133 ↩ ns4.chameleonsys.com
Mail Server IPs
- 129.158.231.133 ↩ ns4.chameleonsys.com
SOA Record
Raw SOA
s2.chameleonsys.com root.s2.chameleonsys.com 2026022700 3600 600 1209600 3600
Primary NS (mname)
s2.chameleonsys.com
Admin Email (rname)
root@s2.chameleonsys.com
Serial
2026022700
Refresh
3600s
Retry
600s
Expire
1209600s
Minimum TTL
3600s
Nameservers (NS)
s2.chameleonsys.com
ns3.chameleonsys.com
ns4.chameleonsys.com
SPF Record
✓ Strict (-all)
v=spf1 a mx a:mastermechanicalair.com ip4:10.0.0.28 ip4:129.158.231.133 ip6:2603:c020:4010:b305:a61c:2bb4:7de5:b811 -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; pct=100; ruf=mailto:[email protected]; rua=mailto:[email protected]; adkim=r; aspf=r; ri=604800
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 1 found
default._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: default
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
1 record- SPFv=spf1 a mx a:mastermechanicalair.com ip4:10.0.0.28 ip4:129.158.231.133 ip6:2603:c020:4010:b305:a61c:2bb4:7de5:b811 -all
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