Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
locktoninternational.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-22 23:11:32 UTC · ↺ Refresh
MX Hostnames
- locktoninternational-com.mail.protection.outlook.com
MX Priorities
- locktoninternational-com.mail.protection.outlook.com: 0
A / AAAA Records
- 147.75.40.150 (no PTR)
Mail Server IPs
- 52.101.41.22 ↩ mail-sj2pr05cu00406.inbound.protection.outlook.com
- 52.101.194.12 ↩ mail-ch0pr04cu00504.inbound.protection.outlook.com
- 52.101.9.12 ↩ mail-bl0pr05cu00504.inbound.protection.outlook.com
- 40.93.192.4 ↩ mail-dm2pr04cu00404.inbound.protection.outlook.com
SOA Record
Raw SOA
ns1.netnames.net hostmaster.cscdns.net 2018073129 10800 1800 3600000 86400
Primary NS (mname)
ns1.netnames.net
Admin Email (rname)
hostmaster@cscdns.net
Serial
2018073129
Refresh
10800s
Retry
1800s
Expire
3600000s
Minimum TTL
86400s
Nameservers (NS)
ns1.netnames.net
ns2.netnames.net
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1;p=quarantine;pct=100;rua=mailto:[email protected];ruf=mailto:[email protected];ri=86400;fo=1;
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 2 found
s1._domainkey
s2._domainkey
✓ Public key: 216 chars (valid)
✓ DKIM properly configured for selector: s1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
3 records- SPFv=spf1 include:spf.protection.outlook.com -all
- L0I0G19971
- MS=ms21688290
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 locktoninternational.com
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits