Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
21stcenturybank.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-18 05:57:35 UTC · ↺ Refresh
MX Hostnames
- 21stcenturybank-com.mail.protection.outlook.com
MX Priorities
- 21stcenturybank-com.mail.protection.outlook.com: 10
A / AAAA Records
- 192.124.249.2 ↩ cloudproxy10002.sucuri.net
Mail Server IPs
- 52.101.194.0 ↩ mail-ch5pr02cu00200.inbound.protection.outlook.com
- 52.101.50.10 ↩ mail-mw2pr02cu00502.inbound.protection.outlook.com
- 52.101.194.3 ↩ mail-ch1pr04cu00103.inbound.protection.outlook.com
- 52.101.40.2 ↩ mail-cy1pr05cu00402.inbound.protection.outlook.com
- 2a01:111:f403:c946::1 ↩ mail-ch1pr04cu00101.inbound.protection.outlook.com
- 2a01:111:f403:f90f::1 ↩ mail-sa9pr04cu00201.inbound.protection.outlook.com
- 2a01:111:f403:c91d::b ↩ mail-mw2pr02cu00603.inbound.protection.outlook.com
- 2a01:111:f403:f908:: ↩ mail-bn1pr21cu00100.inbound.protection.outlook.com
SOA Record
Raw SOA
a1.uberns.com hostmaster.domain.com 2509090086 360 7200 259200 120
Primary NS (mname)
a1.uberns.com
Admin Email (rname)
hostmaster@domain.com
Serial
2509090086
Refresh
360s
Retry
7200s
Expire
259200s
Minimum TTL
120s
Nameservers (NS)
b1.uberns.com
b1.uberns.net
b1.uberns.org
a1.uberns.com
a1.uberns.net
a1.uberns.org
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com include:_s00149740.autospf.email -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; pct=100; rua=mailto:[email protected]
✓ Reject — strongest protection
📋 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- ppe-f1e264d8fb13edc4b1b9
- MS=45FE7BB5A21F92A99B275157650088696CD91CA2
- SPFv=spf1 include:spf.protection.outlook.com include:_s00149740.autospf.email -all
- rANmc77p50hYyDQS1ubbLsVd1HL+Vz2P0ZQuUetmA2xbMTkMzE2dEStgcDkWzE2SHEBwR9eGMAPF4eJbxcXEtA==
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