Domain Overview
DNS: ✓ 21h ago
Checker: ✓ 21h ago
esplabs.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-10-03 18:49:06 UTC · ↺ Refresh
MX Hostnames
- esplabs-com.mail.protection.outlook.com
MX Priorities
- esplabs-com.mail.protection.outlook.com: 0
A / AAAA Records
- 23.99.224.56 (no PTR)
Mail Server IPs
- 52.101.60.154 ↩ mail-bn0pr03cu00302.inbound.protection.outlook.com
- 52.101.9.21 ↩ mail-bl2pr04cu00205.inbound.protection.outlook.com
- 52.101.41.183 ↩ mail-byapr04cu00307.inbound.protection.outlook.com
- 52.101.60.2 ↩ mail-bnypr05cu00102.inbound.protection.outlook.com
- 2a01:111:f403:c927::7 ↩ mail-bn0pr04cu00907.inbound.protection.outlook.com
- 2a01:111:f403:c918::5 ↩ mail-byapr05cu00805.inbound.protection.outlook.com
- 2a01:111:f403:f804::1 ↩ mail-co1pr05cu00301.inbound.protection.outlook.com
- 2a01:111:f403:c91d::b ↩ mail-mw2pr02cu00603.inbound.protection.outlook.com
SOA Record
Raw SOA
pdns07.domaincontrol.com dns.jomax.net 2026081409 28800 7200 604800 600
Primary NS (mname)
pdns07.domaincontrol.com
Admin Email (rname)
dns@jomax.net
Serial
2026081409
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
600s
Nameservers (NS)
pdns08.domaincontrol.com
pdns07.domaincontrol.com
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com include:authsmtp.com -all
📊 DNS lookups: 2/10
✓ 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
3 records- MS=ms30515623
- SPFv=spf1 include:spf.protection.outlook.com include:authsmtp.com -all
- v=verifydomain MS=54C9D01A11972CD83279AB95445A862B3A99EFACEBA06E8F4E40CF4A2CAA525D
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 esplabs.com
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits