houstondec.org

Valid Email Server
Domain Lookup › houstondec.org

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
houstondec.org
Yes
✓ Yes
Mailgun
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-19 18:10:52 UTC · ↺ Refresh

MX Hostnames

  • mxb.mailgun.org
  • mxa.mailgun.org

MX Priorities

  • mxa.mailgun.org: 10
  • mxb.mailgun.org: 10

A / AAAA Records

  • 104.16.249.80 (no PTR)
  • 104.16.251.80 (no PTR)
  • 104.16.253.80 (no PTR)
  • 104.16.250.80 (no PTR)
  • 104.16.252.80 (no PTR)
  • 2606:4700::6810:fd50 (no PTR)
  • 2606:4700::6810:f950 (no PTR)
  • 2606:4700::6810:fa50 (no PTR)
  • 2606:4700::6810:fc50
  • 2606:4700::6810:fb50

Mail Server IPs

  • 34.149.236.64 ↩ 64.236.149.34.bc.googleusercontent.com
  • 34.160.63.108 ↩ 108.63.160.34.bc.googleusercontent.com

SOA Record

Raw SOA ns1.starchapterhost.com dns.cloudflare.com 2398365474 10000 2400 604800 1800
Primary NS (mname)
ns1.starchapterhost.com
Admin Email (rname)
dns@cloudflare.com
Serial
2398365474
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s

Nameservers (NS)

ns2.starchapterhost.com
ns1.starchapterhost.com

SPF Record

✓ Soft Fail (~all)
v=spf1 a:houstondec.org mx include:_netblock.starchapter.com include:_netblock2.starchapter.com ~all
📊 DNS lookups: 4/10
~ Soft fail (~all) — moderate enforcement

DMARC Record

✗ p=none
v=DMARC1; p=none; rua=mailto:[email protected]; ri=604800
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]

DKIM Selectors

✗ None detected

No DKIM records found for common selectors — your provider may use a custom selector name.

Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses

All TXT Records

1 record
  • SPFv=spf1 a:houstondec.org mx include:_netblock.starchapter.com include:_netblock2.starchapter.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 houstondec.org

SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.

No credit card required
Get 1,000 Free Credits