Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
second-to-none.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-23 10:36:16 UTC · ↺ Refresh
MX Hostnames
- secondtonone-com01ec.mail.protection.outlook.com
MX Priorities
- secondtonone-com01ec.mail.protection.outlook.com: 0
A / AAAA Records
- 141.193.213.10 (no PTR)
- 141.193.213.11 (no PTR)
Mail Server IPs
- 52.101.41.24 ↩ mail-sj0pr03cu01600.inbound.protection.outlook.com
- 52.101.11.15 ↩ mail-sa9pr02cu00207.inbound.protection.outlook.com
- 52.101.11.19 ↩ mail-sa9pr04cu00203.inbound.protection.outlook.com
- 52.101.40.0 ↩ mail-cy5pr03cu00300.inbound.protection.outlook.com
- 2a01:111:f403:f908::1 ↩ mail-bn1pr04cu00101.inbound.protection.outlook.com
- 2a01:111:f403:f804::2 ↩ mail-co1pr05cu00402.inbound.protection.outlook.com
- 2a01:111:f403:c946::1 ↩ mail-ch1pr04cu00101.inbound.protection.outlook.com
- 2a01:111:f403:c902::14 ↩ mail-byapr04cu00204.inbound.protection.outlook.com
SOA Record
Raw SOA
ns-410.awsdns-51.com awsdns-hostmaster.amazon.com 1 7200 900 1209600 86400
Primary NS (mname)
ns-410.awsdns-51.com
Admin Email (rname)
awsdns-hostmaster@amazon.com
Serial
1
Refresh
7200s
Retry
900s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
ns-1830.awsdns-36.co.uk
ns-410.awsdns-51.com
ns-716.awsdns-25.net
ns-1041.awsdns-02.org
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com include:amazonses.com include:_spf.psm.knowbe4.com include:relay.mailchannels.net include:spf.mtasv.net -all
📊 DNS lookups: 5/10
✓ 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: 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- have-i-been-pwned-verification=5f6d151c7d9f0a3f87f0f3e0bc071f61
- SPFv=spf1 include:spf.protection.outlook.com include:amazonses.com include:_spf.psm.knowbe4.com include:relay.mailchannels.net include:spf.mtasv.net -all
- MS=ms84479255
- google-site-verification=en5T-ZkJaD7CC8OKi6YhKluhUMNLFWqNs40x_BsTJZM
- google-site-verification=kp8QUt4SZvibLE0OnQkBUzOHHD64nVHOAMACbAZ7LOs
- google-site-verification=naGm0fXH7DC0MxqHpvtkORKgBbYJAXe3Qmmq-7IGwh8
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