Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
rainbowintl.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-24 06:29:32 UTC · ↺ Refresh
MX Hostnames
- rainbowintl-com.mail.protection.outlook.com
MX Priorities
- rainbowintl-com.mail.protection.outlook.com: 10
A / AAAA Records
- 104.17.56.18 (no PTR)
- 104.17.55.18 (no PTR)
- 2606:4700::6811:3712
- 2606:4700::6811:3812
Mail Server IPs
- 52.101.11.2 ↩ mail-sn1pr03cu00102.inbound.protection.outlook.com
- 52.101.41.180 ↩ mail-byapr04cu00204.inbound.protection.outlook.com
- 52.101.41.28 ↩ mail-sj0pr03cu01504.inbound.protection.outlook.com
- 52.101.41.3 ↩ mail-sj2pr05cu00103.inbound.protection.outlook.com
- 2a01:111:f403:c936:: ↩ mail-cy1pr05cu00400.inbound.protection.outlook.com
- 2a01:111:f403:f90f:: ↩ mail-sa9pr04cu00100.inbound.protection.outlook.com
- 2a01:111:f403:c922::2 ↩ mail-bl0pr02cu00702.inbound.protection.outlook.com
- 2a01:111:f403:f804::2 ↩ mail-co1pr05cu00402.inbound.protection.outlook.com
SOA Record
Raw SOA
dolly.ns.cloudflare.com dns.cloudflare.com 2399419556 10000 2400 604800 1800
Primary NS (mname)
dolly.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2399419556
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
dolly.ns.cloudflare.com
jerome.ns.cloudflare.com
SPF Record
✓ Strict (-all)
v=spf1 ip4:129.145.23.16/30 include:spf.protection.outlook.com include:sendgrid.net -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; rua=mailto:[email protected];
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 4 found
selector1._domainkey
selector2._domainkey
s1._domainkey
s2._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- SPFv=spf1 ip4:129.145.23.16/30 include:spf.protection.outlook.com include:sendgrid.net -all
- MS=ms30706152
- MS=ms94407837
- facebook-domain-verification=r9fi8lbbl37jbcf8glltsng52x1vi1
Full email verification for rainbowintl.com
Run SMTP check, SPF/DKIM/DMARC and catch-all detection.
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