Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
21stcenturyenergygroup.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-28 11:54:30 UTC · ↺ Refresh
MX Hostnames
- 21stcenturyenergygroup-com.mail.protection.outlook.com
MX Priorities
- 21stcenturyenergygroup-com.mail.protection.outlook.com: 1
A / AAAA Records
- 172.67.167.239 (no PTR)
- 104.21.13.117 (no PTR)
- 2606:4700:3035::ac43:a7ef
- 2606:4700:3032::6815:d75
Mail Server IPs
- 52.101.10.18 ↩ mail-bn8pr05cu00302.inbound.protection.outlook.com
- 52.101.40.4 ↩ mail-cy5pr03cu00204.inbound.protection.outlook.com
- 52.101.10.5 ↩ mail-bn6pr04cu00105.inbound.protection.outlook.com
- 52.101.10.16 ↩ mail-bn6pr21cu00500.inbound.protection.outlook.com
- 2a01:111:f403:c91d:: ↩ mail-mw2pr04cu00100.inbound.protection.outlook.com
- 2a01:111:f403:f805::1 ↩ mail-co1pr03cu00301.inbound.protection.outlook.com
- 2a01:111:f403:c902::2 ↩ mail-sj0pr03cu01602.inbound.protection.outlook.com
- 2a01:111:f403:f908::2 ↩ mail-bn8pr05cu00102.inbound.protection.outlook.com
SOA Record
Raw SOA
aragorn.ns.cloudflare.com dns.cloudflare.com 2398221969 10000 2400 604800 1800
Primary NS (mname)
aragorn.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2398221969
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
journey.ns.cloudflare.com
aragorn.ns.cloudflare.com
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com include:_fds.destwin.com include:osgconnect.com include:osgbilling.com include:sendinblue.com -all
📊 DNS lookups: 5/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ p=none
v=DMARC1;p=none;pct=100;rua=mailto:[email protected];ri=86400;fo=1
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 3 found
selector1._domainkey
selector2._domainkey
mail._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
4 records- MS=ms58575337
- google-site-verification=MXz-xn3HiP0LuDFG3BHPHi2-q7ezxm2k2Oj98KnPuMU
- google-site-verification=axoMvjEV4Ys7dMM3RQLa4NZGByWvVktoOc_Z_f9w0Jc
- SPFv=spf1 include:spf.protection.outlook.com include:_fds.destwin.com include:osgconnect.com include:osgbilling.com include:sendinblue.com -all
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