Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
rainbowhealth.org
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-18 12:31:19 UTC · ↺ Refresh
MX Hostnames
- rainbowhealth-org.mail.protection.outlook.com
MX Priorities
- rainbowhealth-org.mail.protection.outlook.com: 0
A / AAAA Records
- 50.217.254.172 (no PTR)
Mail Server IPs
- 52.101.194.15 ↩ mail-ch4pr21cu00107.inbound.protection.outlook.com
- 52.101.194.19 ↩ mail-ch5pr02cu00303.inbound.protection.outlook.com
- 52.101.41.22 ↩ mail-sj2pr05cu00406.inbound.protection.outlook.com
- 52.101.50.10 ↩ mail-mw2pr02cu00502.inbound.protection.outlook.com
- 2a01:111:f403:f804::3 ↩ mail-co1pr03cu00403.inbound.protection.outlook.com
- 2a01:111:f403:f907::1 ↩ mail-dm1pr04cu00201.inbound.protection.outlook.com
- 2a01:111:f403:c91d:: ↩ mail-mw2pr04cu00100.inbound.protection.outlook.com
- 2a01:111:f403:f90b:: ↩ mail-bn6pr04cu00100.inbound.protection.outlook.com
SOA Record
Raw SOA
henry.ns.cloudflare.com dns.cloudflare.com 2399254324 10000 2400 604800 1800
Primary NS (mname)
henry.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2399254324
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
henry.ns.cloudflare.com
hope.ns.cloudflare.com
SPF Record
✓ Soft Fail (~all)
v=spf1 ip4:8.53.141.129 include:spf.protection.outlook.com include:_spf.atlassian.net include:spf.mandrillapp.com ~all
📊 DNS lookups: 3/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✓ Reject
v=DMARC1;p=reject;rua=mailto:[email protected];ruf=mailto:[email protected];fo=1
✓ Reject — strongest protection
📋 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
8 records- apple-domain-verification=JaI8BacZys6xDQVp
- asv=b556c141dfdb2da41af77872991a3690
- atlassian-domain-verification=vmIa3V0XTWsbsSOPYz7URIynrcgLYky24dWCV0aLQBd3gaXjbHrLw0IqJWaGWWgc
- atlassian-sending-domain-verification=eaaa9969-750d-4734-9eae-be06b9556306
- docusign=fcfbaac0-f9f8-4586-b872-719e83119274
- SPFv=spf1 ip4:8.53.141.129 include:spf.protection.outlook.com include:_spf.atlassian.net include:spf.mandrillapp.com ~all
- 1password-site-verification=XGQ7UIHJLJFBVGLF3UWFEF3JRU
- amazon-business-verification=c69c8930b2f1e7bd07c361269a3b7093db0505bae593a01e42bc8d1a24772c8b
Free · No signup required
Add email validation to your forms
Block disposable emails, validate MX records, detect role accounts — unlimited, forever free.
<script src="https://check.verifyswift.com/"></script>
One line of code · Works on any site
See demo & docs
Deep verification
Full email verification for rainbowhealth.org
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits