Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
bayhouston.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-25 06:09:12 UTC · ↺ Refresh
MX Hostnames
- bayhouston-com.mail.protection.outlook.com
MX Priorities
- bayhouston-com.mail.protection.outlook.com: 0
A / AAAA Records
- 13.66.36.227 (no PTR)
Mail Server IPs
- 52.101.8.44 ↩ mail-dm5pr04cu00104.inbound.protection.outlook.com
- 52.101.10.18 ↩ mail-bn8pr05cu00302.inbound.protection.outlook.com
- 52.101.9.12 ↩ mail-bl0pr05cu00504.inbound.protection.outlook.com
- 52.101.41.22 ↩ mail-sj2pr05cu00406.inbound.protection.outlook.com
- 2a01:111:f403:c902:: ↩ mail-sj2pr05cu00300.inbound.protection.outlook.com
- 2a01:111:f403:c902::2 ↩ mail-sj0pr03cu01602.inbound.protection.outlook.com
- 2a01:111:f403:f802::1 ↩ mail-sj2pr05cu00101.inbound.protection.outlook.com
- 2a01:111:f403:f902::1 ↩ mail-bl2pr02cu00101.inbound.protection.outlook.com
SOA Record
Raw SOA
ns17.worldnic.com namehost.worldnic.com 126011710 10800 3600 604800 3600
Primary NS (mname)
ns17.worldnic.com
Admin Email (rname)
namehost@worldnic.com
Serial
126011710
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
3600s
Nameservers (NS)
ns17.worldnic.com
ns18.worldnic.com
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com include:_spf.psm.knowbe4.com -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; rua=mailto:[email protected]; ruf=mailto:[email protected]; sp=none; fo=1;
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: none
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
10 records- 880lsldf5is1b9jr2kbdqo33p3
- wwIbU+ABRwpDl8ZjXa6EQQ==
- DMARCv=DMARC1; p=none; rua=mailto:[email protected]; ruf=mailto:[email protected]; sp=none; fo=1;
- 6q7ih6h49cv6an41ov3t1260t6
- htf9bdpi14dt0hv53cad3ic0g2
- atlassian-sending-domain-verification=5c2452e1-d2b4-4646-94a2-db9ee19f14dc
- SPFv=spf1 include:spf.protection.outlook.com include:_spf.psm.knowbe4.com -all
- psiq1m4333bg57u3iirhfeccu6
- atlassian-domain-verification=5qRGlazBSLUGWk1YFTQl/jB2w7qBkaDTlyNJhvMG41TkaNg4wBpmCOAVeXEFOtRl
- duo_sso_verification=ts1rIOAcx13XSgTA56VfUW2PqrxwZpTA10dhyyluBb0ByYb8QhyZC9cm9sGMqjfJ
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 bayhouston.com
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits