sapphire.do

Valid Email Server
Domain Lookup › sapphire.do
Live data — DNS records and disposable check were just fetched and saved.

Domain Overview

DNS: ⚡ live Checker: ⚡ live
sapphire.do
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-05-21 22:48:49 UTC · ↺ Refresh

MX Hostnames

  • mx1.emailsrvr.com
  • mx2.emailsrvr.com

MX Priorities

No priority data.

A / AAAA Records

  • 54.183.102.22

Mail Server IPs

No IPs resolved.

SOA Record

No SOA record found.

Nameservers (NS)

ns3.dnsrubycom.com
ns4.dnsrubycom.com
ns1.dnsrubycom.com
ns2.dnsrubycom.com

SPF Record

✓ Strict (-all)
v=spf1 mx a ip4:69.67.54.161 ip4:69.67.48.0/20 ip4:104.145.232.137 include:emailsrvr.com include:_spf.google.com include:spf.protection.outlook.com -all
📊 DNS lookups: 5/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✓ Reject
v=DMARC1; p=reject; rua=mailto:[email protected]; ruf=mailto:[email protected]; fo=1; adkim=s; aspf=s; pct=100; rf=afrf; ri=300; sp=reject
✓ Reject — strongest protection
📋 SPF alignment: Strict · DKIM alignment: Strict
📧 Reports → mailto:[email protected]
↳ Subdomain policy: reject

DKIM Selectors

✗ None detected

No DKIM records found for common selectors — your provider may use a custom selector name.

Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses

All TXT Records

1 record
  • SPFv=spf1 mx a ip4:69.67.54.161 ip4:69.67.48.0/20 ip4:104.145.232.137 include:emailsrvr.com include:_spf.google.com include:spf.protection.outlook.com -all
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