Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
nsbengineering.com.ph
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-18 23:35:30 UTC · ↺ Refresh
MX Hostnames
- mail.nsbengineering.com.ph
MX Priorities
- mail.nsbengineering.com.ph: 10
A / AAAA Records
- 209.97.174.220 (no PTR)
Mail Server IPs
- 143.198.214.207 ↩ mail.nsbengineering.com.ph
SOA Record
Raw SOA
elliot.ns.cloudflare.com dns.cloudflare.com 2397499185 10000 2400 604800 1800
Primary NS (mname)
elliot.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2397499185
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
elliot.ns.cloudflare.com
eloise.ns.cloudflare.com
SPF Record
✓ Strict (-all)
v=spf1 mx a:mail.nsbengineering.com.ph ip4:143.198.214.207 include:sendgrid.net -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; adkim=s; aspf=s; pct=100; rua=mailto:[email protected]
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Strict
· DKIM alignment: Strict
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 3 found
dkim._domainkey
s1._domainkey
s2._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: dkim
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
1 record- SPFv=spf1 mx a:mail.nsbengineering.com.ph ip4:143.198.214.207 include:sendgrid.net -all
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