Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
onbts.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-27 23:27:40 UTC · ↺ Refresh
MX Hostnames
- onbts-com.mail.protection.outlook.com
MX Priorities
- onbts-com.mail.protection.outlook.com: 10
A / AAAA Records
- 72.167.241.195 ↩ 195.241.167.72.host.secureserver.net
Mail Server IPs
- 52.101.50.10 ↩ mail-mw2pr02cu00502.inbound.protection.outlook.com
- 52.101.10.6 ↩ mail-bn1pr21cu00106.inbound.protection.outlook.com
- 52.101.41.21 ↩ mail-sj2pr05cu00305.inbound.protection.outlook.com
- 52.101.41.54 ↩ mail-sj2pr05cu00506.inbound.protection.outlook.com
- 2a01:111:f403:c922::2 ↩ mail-bl0pr02cu00702.inbound.protection.outlook.com
- 2a01:111:f403:c946::3 ↩ mail-ch0pr04cu00603.inbound.protection.outlook.com
- 2a01:111:f403:c801::1 ↩ mail-sn1pr0501cu00101.inbound.protection.outlook.com
- 2a01:111:f403:c902::6 ↩ mail-sj0pr21cu00106.inbound.protection.outlook.com
SOA Record
Raw SOA
ns1.worldwidedns.net cdalyots.yahoo.com 2026032743 21600 10800 1209600 43200
Primary NS (mname)
ns1.worldwidedns.net
Admin Email (rname)
cdalyots@yahoo.com
Serial
2026032743
Refresh
21600s
Retry
10800s
Expire
1209600s
Minimum TTL
43200s
Nameservers (NS)
ns3.worldwidedns.net
ns5.worldwidedns.net
ns01.backupdns.com
ns1.worldwidedns.net
ns2.worldwidedns.net
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ MissingNo DMARC record — emails cannot be rejected on auth failure.
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._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
1 record- SPFv=spf1 include:spf.protection.outlook.com -all
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 onbts.com
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits