Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
constellationservice.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-28 13:48:56 UTC · ↺ Refresh
MX Hostnames
- constellationservice-com.mail.protection.outlook.com
MX Priorities
- constellationservice-com.mail.protection.outlook.com: 0
A / AAAA Records
- 104.21.94.86 (no PTR)
- 172.67.221.146 (no PTR)
- 2606:4700:3031::ac43:dd92
- 2606:4700:3034::6815:5e56
Mail Server IPs
- 52.101.42.18 ↩ mail-co1pr03cu00302.inbound.protection.outlook.com
- 52.101.40.1 ↩ mail-cy4pr03cu00101.inbound.protection.outlook.com
- 52.101.10.8 ↩ mail-bn1pr04cu00100.inbound.protection.outlook.com
- 52.101.41.3 ↩ mail-sj2pr05cu00103.inbound.protection.outlook.com
- 2a01:111:f403:c92c::4 ↩ mail-dm6pr05cu00404.inbound.protection.outlook.com
- 2a01:111:f403:c91d::b ↩ mail-mw2pr02cu00603.inbound.protection.outlook.com
- 2a01:111:f403:c946::5 ↩ mail-ch4pr21cu00105.inbound.protection.outlook.com
- 2a01:111:f403:c902:: ↩ mail-sj2pr05cu00300.inbound.protection.outlook.com
SOA Record
Raw SOA
kehlani.ns.cloudflare.com dns.cloudflare.com 2396334214 10000 2400 604800 1800
Primary NS (mname)
kehlani.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2396334214
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
kehlani.ns.cloudflare.com
vicky.ns.cloudflare.com
SPF Record
✓ Strict (-all)
v=spf1 mx a ip4:70.163.39.138/32 ip4:13.67.140.168/32 ip4:98.174.113.229/32 include:spf.protection.outlook.com -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; 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
✗ 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
3 records- SPFv=spf1 mx a ip4:70.163.39.138/32 ip4:13.67.140.168/32 ip4:98.174.113.229/32 include:spf.protection.outlook.com -all
- MS=ms18920284
- openai-domain-verification=dv-YDVxM8iThgeFPFMDQZrkWheO
Full email verification for constellationservice.com
Run SMTP check, SPF/DKIM/DMARC and catch-all detection.
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