Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
coibsinc.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-19 12:18:48 UTC · ↺ Refresh
MX Hostnames
- coibsinc-com.mail.protection.outlook.com
MX Priorities
- coibsinc-com.mail.protection.outlook.com: 1
A / AAAA Records
- 52.2.192.9 ↩ ec2-52-2-192-9.compute-1.amazonaws.com
Mail Server IPs
- 52.101.41.4 ↩ mail-sj2pr05cu00204.inbound.protection.outlook.com
- 52.101.10.12 ↩ mail-bn1pr21cu00204.inbound.protection.outlook.com
- 52.101.50.7 ↩ mail-co1pr21cu00207.inbound.protection.outlook.com
- 52.101.11.15 ↩ mail-sa9pr02cu00207.inbound.protection.outlook.com
- 2a01:111:f403:f910:: ↩ mail-cy5pr03cu00300.inbound.protection.outlook.com
- 2a01:111:f403:f805::1 ↩ mail-co1pr03cu00301.inbound.protection.outlook.com
- 2a01:111:f403:f901:: ↩ mail-mn2pr04cu00200.inbound.protection.outlook.com
- 2a01:111:f403:f913:: ↩ mail-cy1pr03cu00100.inbound.protection.outlook.com
SOA Record
Raw SOA
a.dns.hostway.net hostmaster.siteprotect.com 2025071018 86400 7200 86400 300
Primary NS (mname)
a.dns.hostway.net
Admin Email (rname)
hostmaster@siteprotect.com
Serial
2025071018
Refresh
86400s
Retry
7200s
Expire
86400s
Minimum TTL
300s
Nameservers (NS)
bdns.cs.siteprotect.com
adns.cs.siteprotect.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=ms25431243
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