Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
peaktwo.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-18 16:19:13 UTC · ↺ Refresh
MX Hostnames
- peaktwo-com.mail.protection.outlook.com
MX Priorities
- peaktwo-com.mail.protection.outlook.com: 0
A / AAAA Records
- 199.16.173.14 (no PTR)
- 199.16.172.95 (no PTR)
Mail Server IPs
- 52.101.9.20 ↩ mail-bl0pr02cu00604.inbound.protection.outlook.com
- 52.101.11.10 ↩ mail-sa9pr03cu00202.inbound.protection.outlook.com
- 52.101.41.6 ↩ mail-sj0pr03cu01406.inbound.protection.outlook.com
- 52.101.41.26 ↩ mail-sj0pr03cu01702.inbound.protection.outlook.com
- 2a01:111:f403:c922:: ↩ mail-bl0pr03cu00200.inbound.protection.outlook.com
- 2a01:111:f403:f905::4 ↩ mail-dm2pr04cu00404.inbound.protection.outlook.com
- 2a01:111:f403:f90c:: ↩ mail-sn1pr03cu00100.inbound.protection.outlook.com
- 2a01:111:f403:c91d::b ↩ mail-mw2pr02cu00603.inbound.protection.outlook.com
SOA Record
Raw SOA
ns1.sentree.io hostmaster.sentree.io 2008014187 43200 3600 1209600 180
Primary NS (mname)
ns1.sentree.io
Admin Email (rname)
hostmaster@sentree.io
Serial
2008014187
Refresh
43200s
Retry
3600s
Expire
1209600s
Minimum TTL
180s
Nameservers (NS)
ns2.sentree.io
ns3.sentree.io
ns4.sentree.io
ns1.sentree.io
SPF Record
✓ Strict (-all)
v=spf1 a mx include:secureserver.net include:spf.protection.outlook.com -all
📊 DNS lookups: 4/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; rua=mailto:[email protected]; ruf=mailto:[email protected]; sp=none; fo=1
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: none
DKIM Selectors
✓ 4 found
selector1._domainkey
selector2._domainkey
s1._domainkey
s2._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=fC783C6n4uFm4EFXJ3M0SBJLfj5TrDKyLpoRcufFik4
- google-site-verification=H1LcnDlIYuVCoBtUnLxx-LruI5EPoi_Up1u1tp0kpkU
- google-site-verification=ELjAF4A6FBdVfPeFRWSkWpQaAA3Ay7oj70qtqOoFlJo
- SPFv=spf1 a mx include:secureserver.net include:spf.protection.outlook.com -all
Full email verification for peaktwo.com
Run SMTP check, SPF/DKIM/DMARC and catch-all detection.
SPF / DKIM / DMARC Get 1,000 Free Credits