ci.laredo.tx.us

Valid Email Server
Domain Lookup › ci.laredo.tx.us

Domain Overview

DNS: ✓ 1h ago Checker: ✓ 1h ago
ci.laredo.tx.us
Yes
✓ Yes
Barracuda
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-06-03 07:41:27 UTC · ↺ Refresh

Add email validation to your forms — free

Add our free script to block 10,000+ disposable domains + perform other checks. No signup, unlimited checks.

MX validation Disposable detection Role accounts
Add to your signup form
<script src="https://check.verifyswift.com/"></script>
One line · No registration · See full docs & demo → · Customize →

MX Hostnames

  • d79933b.ess.barracudanetworks.com
  • d79933a.ess.barracudanetworks.com

MX Priorities

  • d79933b.ess.barracudanetworks.com: 10
  • d79933a.ess.barracudanetworks.com: 5

A / AAAA Records

  • 135.84.124.41 (no PTR)

Mail Server IPs

  • 209.222.82.252 ↩ mail.ess.barracuda.com
  • 209.222.82.253 ↩ mail.ess.barracuda.com
  • 209.222.82.255 ↩ mail.ess.barracuda.com

SOA Record

Raw SOA ns1.ci.laredo.tx.us dns.cloudflare.com 2405543782 10000 2400 604800 1800
Primary NS (mname)
ns1.ci.laredo.tx.us
Admin Email (rname)
dns@cloudflare.com
Serial
2405543782
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s

Nameservers (NS)

ns2.ci.laredo.tx.us
ns1.ci.laredo.tx.us
ns3.ci.laredo.tx.us
ns4.ci.laredo.tx.us

SPF Record

✓ Strict (-all)
v=spf1 mx a:smtp1.citizenserve.com a:barspam.ci.laredo.tx.us ip4:166.78.71.191/32 ip4:50.84.34.101/27 ip4:74.114.64.241 include:_spf.firmstep.com include:amazonses.com include:_spf.salesforce.com -all
📊 DNS lookups: 6/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✓ Reject
v=DMARC1; p=reject; rua=mailto:[email protected]; ruf=mailto:[email protected]; fo=1;
✓ Reject — strongest protection
📋 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

15 records
  • gs21ogugihi8qn2bqcj7k26qmb
  • jobdm70l4inkvj54kt5gr50t4a
  • m4kr7qmc2oolavtqgkffflt0ul
  • o5e65u610f36m8tmtdteoip17u
  • SPFv=spf1 mx a:smtp1.citizenserve.com a:barspam.ci.laredo.tx.us ip4:166.78.71.191/32 ip4:50.84.34.101/27 ip4:74.114.64.241 include:_spf.firmstep.com include:amazonses.com include:_spf.salesforce.com -all
  • Foxit-domain-verification=7f3355fa26a6c8a2d5e1b2df873153bf
  • Gg6pexs5GZEsVC7SZd/gMHLd9RkJdjYq00M8OAPgKobbiZTxzAPu5MJVCAGoblJsEW+MV8LO8o/op2Yy4Kvvgw==
  • MS=849DCEF82872C337CC716E18CA5909A9AE359B07
  • MS=ms24151493
  • MS=ms40008956
  • apple-domain-verification=XCXCRqWUtsbhn8ZD
  • apple-domain-verification=Xzk2EJuPCYbqPy4s
  • atlassian-domain-verification=Zd089qK0ap1Zapyh9Th/2mkOhXErosJC5aZSb1VJVzm06zdSTaiGt4FohCl0nnkl
  • cisco-ci-domain-verification=3d6e30a8ef18977558e292aca0a4b3c234bdaece55675676f9284b09b91b5e8b
  • duo_sso_verification=jiyNK5xxUJAuG4yKx5H3rhrvlGeFXNyvacL69kGOMj9G0rRrN2reirq1Ogw28qIi
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 ci.laredo.tx.us

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

No credit card required
Get 1,000 Free Credits