Domain Overview
DNS: ✓ 4h ago
Checker: ✓ 4h ago
enterprise64.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-05-21 11:50:53 UTC · ↺ Refresh
MX Hostnames
- enterprise64-com.mail.protection.outlook.com
MX Priorities
- enterprise64-com.mail.protection.outlook.com: 1
A / AAAA Records
- 104.26.10.73 (no PTR)
- 104.26.11.73 (no PTR)
- 172.67.74.230
- 2606:4700:20::681a:a49
- 2606:4700:20::ac43:4ae6
- 2606:4700:20::681a:b49
Mail Server IPs
- 52.101.9.11 ↩ mail-bl2pr04cu00103.inbound.protection.outlook.com
- 52.101.10.8 ↩ mail-bn1pr04cu00100.inbound.protection.outlook.com
- 52.101.11.10 ↩ mail-sa9pr03cu00202.inbound.protection.outlook.com
- 52.101.9.21 ↩ mail-bl2pr04cu00205.inbound.protection.outlook.com
- 2a01:111:f403:c802:: ↩ mail-cy4pr03cu00100.inbound.protection.outlook.com
- 2a01:111:f403:f905::4 ↩ mail-dm2pr04cu00404.inbound.protection.outlook.com
- 2a01:111:f403:f90d::1 ↩ mail-sn1pr0501cu00301.inbound.protection.outlook.com
- 2a01:111:f403:f913:: ↩ mail-cy1pr03cu00100.inbound.protection.outlook.com
SOA Record
Raw SOA
jacqueline.ns.cloudflare.com dns.cloudflare.com 2404723583 10000 2400 604800 1800
Primary NS (mname)
jacqueline.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2404723583
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
rocky.ns.cloudflare.com
jacqueline.ns.cloudflare.com
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com include:sendgrid.net -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected]
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 5 found
selector1._domainkey
selector2._domainkey
mail._domainkey
s1._domainkey
s2._domainkey
✓ Public key: 392 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
5 records- ms-domain-verification=6c7b587b-b179-444e-99ef-1c6d53ae897c
- SPFv=spf1 include:spf.protection.outlook.com include:sendgrid.net -all
- atlassian-domain-verification=N4OTNQ2O3ToWiQkvSShlJTvloCfZfL2/jGA5P6VdExXbxav8zaRL3FhWNcT8Lbia
- brevo-code:09170e05976e1d5c2fbdc1868d0ce88b
- google-site-verification=co-1KZAi7saFpCoJaLrpY3dc19D3gW64jsnyuV7TxOc
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 enterprise64.com
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits