Domain Overview
DNS: ✓ 2h ago
Checker: ✓ 2h ago
cat5resources.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-08-10 04:25:09 UTC · ↺ Refresh
MX Hostnames
- cat5resources-com.mail.protection.outlook.com
MX Priorities
- cat5resources-com.mail.protection.outlook.com: 0
A / AAAA Records
- 162.159.135.42 (no PTR)
Mail Server IPs
- 52.101.9.2 ↩ mail-mn2pr02cu00202.inbound.protection.outlook.com
- 52.101.40.1 ↩ mail-cy4pr03cu00101.inbound.protection.outlook.com
- 52.101.194.3 ↩ mail-ch1pr04cu00103.inbound.protection.outlook.com
- 52.101.50.1 ↩ mail-co1pr05cu00401.inbound.protection.outlook.com
- 2a01:111:f403:f901:: ↩ mail-mn2pr04cu00200.inbound.protection.outlook.com
- 2a01:111:f403:f90d::1 ↩ mail-sn1pr0501cu00301.inbound.protection.outlook.com
- 2a01:111:f403:f805::1 ↩ mail-co1pr03cu00301.inbound.protection.outlook.com
- 2a01:111:f403:c802:: ↩ mail-cy4pr03cu00100.inbound.protection.outlook.com
SOA Record
Raw SOA
ns1.bluehost.com root.box2451.bluehost.com 2025042302 86400 7200 3600000 300
Primary NS (mname)
ns1.bluehost.com
Admin Email (rname)
root@box2451.bluehost.com
Serial
2025042302
Refresh
86400s
Retry
7200s
Expire
3600000s
Minimum TTL
300s
Nameservers (NS)
ns1.bluehost.com
ns2.bluehost.com
SPF Record
✓ Strict (-all)
v=spf1 +a +mx +ip4:69.195.74.225 +include:spf.protection.outlook.com +include:relay.kinstamailservice.com -all
📊 DNS lookups: 4/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected]; ruf=mailto:[email protected]; fo=1; pct=100
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 1 found
mail._domainkey
✓ Public key: 216 chars (valid)
✓ DKIM properly configured for selector: mail
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
5 records- ca3-f2aa3686ca7e42deba31717c2a0f724b
- SPFv=spf1 +a +mx +ip4:69.195.74.225 +include:spf.protection.outlook.com +include:relay.kinstamailservice.com -all
- google-site-verification=YVkyM76C6qaabcFrlud0aB2gbaVn9MzLqnKxzT0hZzY
- google-site-verification=iRzvgi4caE44JGHSdlhmJr4J2NkZDaqvq9MJ5cJbjTo
- apple-domain-verification=EZVcgOjxeYBdNYh6
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 · Customize →
See demo & docs
Deep verification
Full email verification for cat5resources.com
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits