Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
spectrumcube.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-27 04:01:20 UTC · ↺ Refresh
MX Hostnames
- spectrumcube-com.mail.protection.outlook.com
MX Priorities
- spectrumcube-com.mail.protection.outlook.com: 0
A / AAAA Records
- 50.116.64.92 ↩ 50-116-64-92.unifiedlayer.com
Mail Server IPs
- 52.101.148.1 ↩ mail-dx1p273cu00301.inbound.protection.outlook.com
- 52.101.148.13 ↩ mail-dx2p273cu00205.inbound.protection.outlook.com
- 52.101.147.1 ↩ mail-au1p273cu00101.inbound.protection.outlook.com
- 52.101.148.3 ↩ mail-dx3p273cu00103.inbound.protection.outlook.com
- 2a01:111:f403:cc30:: ↩ mail-dx1p273cu00300.inbound.protection.outlook.com
- 2a01:111:f403:cc30::1 ↩ mail-dx3p273cu00101.inbound.protection.outlook.com
- 2a01:111:f403:cc30::3 ↩ mail-dx2p273cu00203.inbound.protection.outlook.com
- 2a01:111:f403:cc2f:: ↩ mail-au1p273cu00100.inbound.protection.outlook.com
SOA Record
Raw SOA
ns1.bluehost.com root.box5940.bluehost.com 2025122205 86400 7200 3600000 300
Primary NS (mname)
ns1.bluehost.com
Admin Email (rname)
root@box5940.bluehost.com
Serial
2025122205
Refresh
86400s
Retry
7200s
Expire
3600000s
Minimum TTL
300s
Nameservers (NS)
ns2.bluehost.com
ns1.bluehost.com
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; rua=mailto:[email protected];
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 3 found
selector1._domainkey
selector2._domainkey
default._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
3 records- SPFv=spf1 include:spf.protection.outlook.com -all
- MS=ms46976422
- globalsign-domain-verification=6F6512E183FB3FDBC0CD720207352372
Full email verification for spectrumcube.com
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