Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
premiumch.biz
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-31 06:27:47 UTC · ↺ Refresh
MX Hostnames
- us2.mx1.mailhostbox.com
- us2.mx2.mailhostbox.com
- us2.mx3.mailhostbox.com
- premiumch-biz.mail.protection.outlook.com
MX Priorities
- us2.mx1.mailhostbox.com: 100
- us2.mx2.mailhostbox.com: 100
- premiumch-biz.mail.protection.outlook.com: 0
- us2.mx3.mailhostbox.com: 100
A / AAAA Records
No A/AAAA records found.
Mail Server IPs
- 162.215.3.26 ↩ 162-215-3-26.unifiedlayer.com
- 162.215.2.27 ↩ 162-215-2-27.unifiedlayer.com
- 52.101.9.17 (no PTR)
- 52.101.41.4 ↩ mail-sj2pr05cu00204.inbound.protection.outlook.com
- 52.101.9.14 ↩ mail-bl0pr03cu00206.inbound.protection.outlook.com
- 52.101.10.18 ↩ mail-bn8pr05cu00302.inbound.protection.outlook.com
- 2a01:111:f403:c902::5 ↩ mail-sj2pr05cu00505.inbound.protection.outlook.com
- 2a01:111:f403:c902::14 ↩ mail-byapr04cu00204.inbound.protection.outlook.com
- 2a01:111:f403:c92c::3 ↩ mail-dm5pr04cu00103.inbound.protection.outlook.com
- 2a01:111:f403:f910:: ↩ mail-cy5pr03cu00300.inbound.protection.outlook.com
- 162.215.3.25
SOA Record
Raw SOA
ns10.solo10.com mchang.b-evolution.com 2021102501 7200 7200 172800 7200
Primary NS (mname)
ns10.solo10.com
Admin Email (rname)
mchang@b-evolution.com
Serial
2021102501
Refresh
7200s
Retry
7200s
Expire
172800s
Minimum TTL
7200s
Nameservers (NS)
ns9.solo10.com
ns8.solo10.com
ns10.solo10.com
ns7.solo10.com
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ MissingNo DMARC record — emails cannot be rejected on auth failure.
DKIM Selectors
✗ None detectedNo DKIM records found for common selectors — your provider may use a custom selector name.
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
2 records- SPFv=spf1 include:spf.protection.outlook.com -all
- MS=ms83545098
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