Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
hcde-texas.org
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-21 02:31:20 UTC · ↺ Refresh
MX Hostnames
- hcdetexas-org01b.mail.protection.outlook.com
MX Priorities
- hcdetexas-org01b.mail.protection.outlook.com: 1
A / AAAA Records
- 104.17.71.73 (no PTR)
Mail Server IPs
- 52.101.9.21 ↩ mail-bl2pr04cu00205.inbound.protection.outlook.com
- 52.101.9.14 ↩ mail-bl0pr03cu00206.inbound.protection.outlook.com
- 52.101.11.9 ↩ mail-sn1pr02cu00101.inbound.protection.outlook.com
- 52.101.10.1 ↩ mail-bn6pr02cu00301.inbound.protection.outlook.com
- 2a01:111:f403:f804::2 ↩ mail-co1pr05cu00402.inbound.protection.outlook.com
- 2a01:111:f403:c936:: ↩ mail-cy1pr05cu00400.inbound.protection.outlook.com
- 2a01:111:f403:f901:: ↩ mail-mn2pr04cu00200.inbound.protection.outlook.com
- 2a01:111:f403:f805::1 ↩ mail-co1pr03cu00301.inbound.protection.outlook.com
SOA Record
Raw SOA
ns6.hcde-texas.org dnsadmin.hcde-texas.org 955 7200 18000 604800 600
Primary NS (mname)
ns6.hcde-texas.org
Admin Email (rname)
dnsadmin@hcde-texas.org
Serial
955
Refresh
7200s
Retry
18000s
Expire
604800s
Minimum TTL
600s
Nameservers (NS)
ns1-02.azure-dns.com
ns2-02.azure-dns.net
ns3-02.azure-dns.org
ns4-02.azure-dns.info
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com ip4:170.39.204.0/24 ip4:162.247.216.0/22 include:spf.schoolwires.net include:spf.constantcontact.com include:e2ma.net include:customerspf.schoolmessenger.com include:_spf.qemailserver.com include:_spf.bbnotify.net include:mailgun.org ip4:166.78.68.38/32 ip4:174.37.226.81/32 ip4:184.173.153.100/32 -all
📊 DNS lookups: 8/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected]
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
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
13 records- SPFv=spf1 include:spf.protection.outlook.com ip4:170.39.204.0/24 ip4:162.247.216.0/22 include:spf.schoolwires.net include:spf.constantcontact.com include:e2ma.net include:customerspf.schoolmessenger.com include:_spf.qemailserver.com include:_spf.bbnotify.net include:mailgun.org ip4:166.78.68.38/32 ip4:174.37.226.81/32 ip4:184.173.153.100/32 -all
- DKIMv=DKIM1; k=rsa; p=MIGfMA0GCSqGSIb3DQEBAQUAA4GNADCBiQKBgQDFuyxgENyc2PT56Bnrv39iFUFVyNEeBLR/Ei4Ajg3CVdWtmGVrJP2sKZb/FQOL74KncbWNsyiF05ae3aI74X2aP4WmwGuXDblfwAL4E1iMX7A8SD+BhfDU8BRmjY3wSsd9rVz45OJ7lPqHZocZk/kam4J9pDwnSFAdqCfwRIwpkQIDAQAB
- adobe-idp-site-verification=67092c047ba8b92e0f1f3d7385b0ed1b96982e4c36ed769322105c2834fcb441
- google-site-verification=zKzb0bd53S3OCzM_-TT8VF4r0gCA19z0LBbTGGVhTX8
- ZOOM_verify_Ok0cNYBwQ-y6LTNQBMXEOw
- amazon-business-verification=d2c77edfc0e2d70d8beb45ee6007f166f415da2e73b0c7a853ba3aa83fc984a4
- autodesk-domain-verification=axfFpRk_yKiifu1fnmvD
- apple-domain-verification=vVLkkYm2ip13fsgo
- 44pm8xrdjnd4hgvl2s89612kn33vslnq
- bjl5sf8ktxs4c0jqclc3t7ftxs7g8j5n
- MS=ms29507197
- jLvqgfGHdYcMFkjWyzrQwmX5lKSegJQ0td9TlXU9HR2bQ9HjXYTHaT8L7PcC8s0uD499J6q3wJ41DSVbIZMWxQ
- e2ma-verification=uyobb
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 hcde-texas.org
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits