Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
mastersiomai.com
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-26 22:20:04 UTC · ↺ Refresh
MX Hostnames
- _dc-mx.3b05b2881f7f.mastersiomai.com
MX Priorities
- _dc-mx.3b05b2881f7f.mastersiomai.com: 0
A / AAAA Records
- 172.67.138.21 (no PTR)
- 104.21.94.165 (no PTR)
- 2606:4700:3037::ac43:8a15 (no PTR)
- 2606:4700:3033::6815:5ea5 (no PTR)
Mail Server IPs
- 205.251.149.162 ↩ server.nameserver16.net
SOA Record
Raw SOA
greg.ns.cloudflare.com dns.cloudflare.com 2395568332 10000 2400 604800 1800
Primary NS (mname)
greg.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2395568332
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
greg.ns.cloudflare.com
violet.ns.cloudflare.com
SPF Record
✓ Soft Fail (~all)
v=spf1 ip4:205.251.149.162 +a +mx +ip4:64.22.104.144 ~all
📊 DNS lookups: 2/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✗ MissingNo DMARC record — emails cannot be rejected on auth failure.
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
2 records- google-site-verification=Zyxch9HFpYgYyK1MHBtwvx6P-OYsxOnmoHRzx0xtFxA
- SPFv=spf1 ip4:205.251.149.162 +a +mx +ip4:64.22.104.144 ~all
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