Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
continuum-nursing.com
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-18 20:38:09 UTC · ↺ Refresh
MX Hostnames
- mx.paubox.com
MX Priorities
- mx.paubox.com: 10
A / AAAA Records
- 104.21.0.181
- 172.67.128.45
- 2606:4700:3036::ac43:802d
- 2606:4700:3034::6815:b5
Mail Server IPs
- 165.140.171.101 ↩ mx.paubox.com
- 165.140.171.195 ↩ mx.paubox.com
- 165.140.171.15 ↩ mx.paubox.com
- 165.140.171.155 ↩ mx.paubox.com
- 165.140.171.164 ↩ mx.paubox.com
- 165.140.171.169 ↩ mx.paubox.com
- 165.140.171.189 ↩ mx.paubox.com
- 165.140.171.18 ↩ mx.paubox.com
- 165.140.171.143 ↩ mx.paubox.com
- 165.140.171.111 ↩ mx.paubox.com
- 165.140.171.170
- 165.140.171.124
- 165.140.171.199
SOA Record
Raw SOA
chin.ns.cloudflare.com dns.cloudflare.com 2397622849 10000 2400 604800 1800
Primary NS (mname)
chin.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2397622849
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
chin.ns.cloudflare.com
glen.ns.cloudflare.com
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com include:sendgrid.net include:mailgun.org include:_spf.paubox.com -all
📊 DNS lookups: 4/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; pct=100; rua=mailto:[email protected]; ruf=mailto:[email protected]; fo=1;
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._domainkey
✓ Public key: 216 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
1 record- SPFv=spf1 include:spf.protection.outlook.com include:sendgrid.net include:mailgun.org include:_spf.paubox.com -all
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