Domain Overview
DNS: ✓ just now
Checker: ✓ just now
tdi-bi.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-06-01 22:04:00 UTC · ↺ Refresh
MX Hostnames
- tdibi-com0i.mail.protection.outlook.com
MX Priorities
- tdibi-com0i.mail.protection.outlook.com: 3
A / AAAA Records
- 69.16.238.95 ↩ www19.website-server.net
Mail Server IPs
- 52.101.40.4 ↩ mail-cy5pr03cu00204.inbound.protection.outlook.com
- 52.101.10.8 ↩ mail-bn1pr04cu00100.inbound.protection.outlook.com
- 52.101.8.44 ↩ mail-dm5pr04cu00104.inbound.protection.outlook.com
- 52.101.42.14 ↩ mail-mw2pr04cu00106.inbound.protection.outlook.com
- 2a01:111:f403:f903:: (no PTR)
- 2a01:111:f403:f901::1 ↩ mail-bl0pr02cu00601.inbound.protection.outlook.com
- 2a01:111:f403:c903::3 ↩ mail-mw2pr02cu00503.inbound.protection.outlook.com
- 2a01:111:f403:f90d:: ↩ mail-sn1pr0501cu00200.inbound.protection.outlook.com
SOA Record
Raw SOA
ns3.gkg.net root.tdi-bi.com 1415400456 28800 7200 604800 7200
Primary NS (mname)
ns3.gkg.net
Admin Email (rname)
root@tdi-bi.com
Serial
1415400456
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
7200s
Nameservers (NS)
ns4.gkg.net
ns3.gkg.net
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com ip4:172.108.245.58/32 -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; sp=reject; aspf=r; adkim=r;
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
↳ Subdomain policy: reject
DKIM Selectors
✓ 1 found
mail._domainkey
✓ Public key: 216 chars (valid)
✓ DKIM properly configured for selector: mail
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
7 records- SPFv=spf1 include:spf.protection.outlook.com ip4:172.108.245.58/32 -all
- 3gc74agr60917q2aoe4c9p3oo4
- _globalsign-domain-verification=eEgjU2ZTb4QAjzRYOcuYrrKvo0D-_kPCHPBYColhP4
- hupda520671169rgm847e342e5
- MS=ms83600770
- MS=ms48708159
- MS=ms31495880
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 tdi-bi.com
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits