Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
singletonschreiber.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-22 20:26:29 UTC · ↺ Refresh
MX Hostnames
- singletonschreiber-com.mail.protection.outlook.com
MX Priorities
- singletonschreiber-com.mail.protection.outlook.com: 0
A / AAAA Records
- 216.157.108.97 ↩ d89d6c61.client-ipv4.firmseek.net
- 72.32.131.23 ↩ www-dispatch.firmseek.com
Mail Server IPs
- 52.101.8.42 ↩ mail-dm6pr03cu00402.inbound.protection.outlook.com
- 52.101.50.7 ↩ mail-co1pr21cu00207.inbound.protection.outlook.com
- 52.101.11.2 ↩ mail-sn1pr03cu00102.inbound.protection.outlook.com
- 52.101.50.4 ↩ mail-co1pr03cu00404.inbound.protection.outlook.com
- 2a01:111:f403:c902::6 ↩ mail-sj0pr21cu00106.inbound.protection.outlook.com
- 2a01:111:f403:f90c:: ↩ mail-sn1pr03cu00100.inbound.protection.outlook.com
- 2a01:111:f403:c902::5 ↩ mail-sj2pr05cu00505.inbound.protection.outlook.com
- 2a01:111:f403:f905::4 ↩ mail-dm2pr04cu00404.inbound.protection.outlook.com
SOA Record
Raw SOA
ns35.domaincontrol.com dns.jomax.net 2025073002 28800 7200 604800 600
Primary NS (mname)
ns35.domaincontrol.com
Admin Email (rname)
dns@jomax.net
Serial
2025073002
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
600s
Nameservers (NS)
ns35.domaincontrol.com
ns36.domaincontrol.com
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com include:spf-westus.emailsignatures365.com -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; pct=100; rua=mailto:[email protected]; ruf=mailto:[email protected]
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._domainkey
✓ Public key: 392 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
4 records- google-site-verification=5cIdoKTYQ_nl7xWUt8YHBdYxcC3AztBnNVsO-qdP-8I
- google-site-verification=lVBeKdDo5HFPi2VVYWaTCYQn8XVJkGCfEek7_ik3Dig
- fo6t2ufo660024tmok3mle9hml
- SPFv=spf1 include:spf.protection.outlook.com include:spf-westus.emailsignatures365.com -all
Full email verification for singletonschreiber.com
Run SMTP check, SPF/DKIM/DMARC and catch-all detection.
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