Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
flatironcorp.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-18 20:17:01 UTC · ↺ Refresh
MX Hostnames
- flatironcorp-com.mail.protection.outlook.com
MX Priorities
- flatironcorp-com.mail.protection.outlook.com: 0
A / AAAA Records
- 76.76.21.21 (no PTR)
Mail Server IPs
- 52.101.40.24 ↩ mail-cy5pr05cu00100.inbound.protection.outlook.com
- 52.101.40.6 ↩ mail-cy1pr03cu00106.inbound.protection.outlook.com
- 52.101.10.14 ↩ mail-bn6pr04cu00206.inbound.protection.outlook.com
- 52.101.10.18 ↩ mail-bn8pr05cu00302.inbound.protection.outlook.com
- 2a01:111:f403:c902::6 ↩ mail-sj0pr21cu00106.inbound.protection.outlook.com
- 2a01:111:f403:c92c::3 ↩ mail-dm5pr04cu00103.inbound.protection.outlook.com
- 2a01:111:f403:c946::5 ↩ mail-ch4pr21cu00105.inbound.protection.outlook.com
- 2a01:111:f403:f901::2 ↩ mail-bl2pr02cu00402.inbound.protection.outlook.com
SOA Record
Raw SOA
ns57.domaincontrol.com dns.jomax.net 2026031800 28800 7200 604800 600
Primary NS (mname)
ns57.domaincontrol.com
Admin Email (rname)
dns@jomax.net
Serial
2026031800
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
600s
Nameservers (NS)
ns58.domaincontrol.com
ns57.domaincontrol.com
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com include:mailgun.org include:spf.odmad.quest-on-demand.com ip4:149.72.147.186/32 ip4:167.89.101.239/32 ip4:4.14.117.8/30 ip4:66.45.58.8/30 -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; 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
✓ 4 found
selector1._domainkey
selector2._domainkey
s1._domainkey
s2._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
6 records- _1st9ob1nn1ldxznb63o75ggitzym51i
- SPFv=spf1 include:spf.protection.outlook.com include:mailgun.org include:spf.odmad.quest-on-demand.com ip4:149.72.147.186/32 ip4:167.89.101.239/32 ip4:4.14.117.8/30 ip4:66.45.58.8/30 -all
- google-site-verification=9yqW9zC4kGsZ1yJjEiPNZd9aS4iXfOO2Fkelz6lFUko
- _telesec-domain-validation=C86A98283CD9D4BE6C9F604452A662305CB848C1504DF153502648B0F07E54EF
- MS=ms48558817
- _uw341jdqxs9l5larzkhelbq7uk2rb9n
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