Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
btxglobal.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-18 03:56:39 UTC · ↺ Refresh
MX Hostnames
- btxglobal-com.mail.protection.outlook.com
MX Priorities
- btxglobal-com.mail.protection.outlook.com: 0
A / AAAA Records
- 207.200.31.195 (no PTR)
Mail Server IPs
- 52.101.194.17 ↩ mail-ch5pr02cu00401.inbound.protection.outlook.com
- 52.101.10.6 ↩ mail-bn1pr21cu00106.inbound.protection.outlook.com
- 52.101.9.21 ↩ mail-bl2pr04cu00205.inbound.protection.outlook.com
- 52.101.41.26 ↩ mail-sj0pr03cu01702.inbound.protection.outlook.com
- 2a01:111:f403:f908:: ↩ mail-bn1pr21cu00100.inbound.protection.outlook.com
- 2a01:111:f403:c92c::3 ↩ mail-dm5pr04cu00103.inbound.protection.outlook.com
- 2a01:111:f403:f908::2 ↩ mail-bn8pr05cu00102.inbound.protection.outlook.com
- 2a01:111:f403:c922:: ↩ mail-bl0pr03cu00200.inbound.protection.outlook.com
SOA Record
Raw SOA
ns2.domaindiscover.com hostmaster.tierra.net 2026013002 86400 3600 604800 432000
Primary NS (mname)
ns2.domaindiscover.com
Admin Email (rname)
hostmaster@tierra.net
Serial
2026013002
Refresh
86400s
Retry
3600s
Expire
604800s
Minimum TTL
432000s
Nameservers (NS)
ns2.domaindiscover.com
ns1.domaindiscover.com
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com include:_spf.salesforce.com include:405498.spf08.hubspotemail.net ip4:216.109.215.228 ip4:216.150.197.177 ip4:216.150.197.132 ip4:76.9.182.177 ip4:76.9.182.132 ip4:151.181.227.98 ip4:216.109.215.228 a:portal.gamasuite.com include:sendgrid.net -all
📊 DNS lookups: 5/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; pct=100; aspf=r; adkim=r; fo=1
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
DKIM Selectors
✓ 4 found
selector1._domainkey
selector2._domainkey
s1._domainkey
s2._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
4 records- MS=ms59436337
- 6chcuckqh751tpe08qoavkod8g
- SPFv=spf1 include:spf.protection.outlook.com include:_spf.salesforce.com include:405498.spf08.hubspotemail.net ip4:216.109.215.228 ip4:216.150.197.177 ip4:216.150.197.132 ip4:76.9.182.177 ip4:76.9.182.132 ip4:151.181.227.98 ip4:216.109.215.228 a:portal.gamasuite.com include:sendgrid.net -all
- google-site-verification=PbilnzoOlkcDp50DvpxBFXgnztAjq7jcV9KfCiu8onA
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 btxglobal.com
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits