Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
spectrum-engineers.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-17 19:03:10 UTC · ↺ Refresh
MX Hostnames
- spectrumengineers-com02b.mail.protection.outlook.com
MX Priorities
- spectrumengineers-com02b.mail.protection.outlook.com: 0
A / AAAA Records
- 104.26.2.196 (no PTR)
- 172.67.75.29 (no PTR)
- 104.26.3.196
- 2606:4700:20::681a:3c4
- 2606:4700:20::681a:2c4
- 2606:4700:20::ac43:4b1d
Mail Server IPs
- 52.101.194.0 ↩ mail-ch5pr02cu00200.inbound.protection.outlook.com
- 52.101.50.4 ↩ mail-co1pr03cu00404.inbound.protection.outlook.com
- 52.101.194.13 ↩ mail-ch0pr04cu00605.inbound.protection.outlook.com
- 52.101.41.28 ↩ mail-sj0pr03cu01504.inbound.protection.outlook.com
- 2a01:111:f403:f802::3 ↩ mail-sj0pr03cu01403.inbound.protection.outlook.com
- 2a01:111:f403:f90c:: ↩ mail-sn1pr03cu00100.inbound.protection.outlook.com
- 2a01:111:f403:c922::1 ↩ mail-bl0pr05cu00501.inbound.protection.outlook.com
- 2a01:111:f403:c92c::2 ↩ mail-dm2pr04cu00102.inbound.protection.outlook.com
SOA Record
Raw SOA
jack.ns.cloudflare.com dns.cloudflare.com 2397308339 10000 2400 604800 1800
Primary NS (mname)
jack.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2397308339
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
jack.ns.cloudflare.com
lila.ns.cloudflare.com
SPF Record
✓ Strict (-all)
v=spf1 mx ip4:67.128.47.32/27 include:spf.protection.outlook.com include:spf-westus.emailsignatures365.com -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; pct=100; rua=mailto:[email protected]; ruf=mailto:[email protected]; fo=1
~ Quarantine — good protection (failing mail goes to spam)
📋 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
4 records- _globalsign-domain-verification=7G4U0CRy9V5Ppu9XVm8I_fMFyIan08FvErLZuNkwuG
- google-site-verification=B6jzpMp65aVb2bQe3VBA3_wRFIDTWqgO0MTYH3ISn3E
- google-site-verification=C2DnsSTEOsW263BdiRTT08xTgJfbzog6nkzAkKaYwl
- SPFv=spf1 mx ip4:67.128.47.32/27 include:spf.protection.outlook.com include:spf-westus.emailsignatures365.com -all
Full email verification for spectrum-engineers.com
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