steren.com.co

Valid Email Server
Domain Lookup › steren.com.co

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
steren.com.co
Yes
✓ Yes
Barracuda
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-03-28 14:16:52 UTC · ↺ Refresh

MX Hostnames

  • d342329b.ess.barracudanetworks.com
  • d342329a.ess.barracudanetworks.com

MX Priorities

  • d342329b.ess.barracudanetworks.com: 20
  • d342329a.ess.barracudanetworks.com: 10

A / AAAA Records

  • 104.18.23.6 (no PTR)

Mail Server IPs

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

SOA Record

Raw SOA ns21.domaincontrol.com dns.jomax.net 2025120801 28800 7200 604800 600
Primary NS (mname)
ns21.domaincontrol.com
Admin Email (rname)
dns@jomax.net
Serial
2025120801
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
600s

Nameservers (NS)

ns21.domaincontrol.com
ns22.domaincontrol.com

SPF Record

✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com include:spf.ess.barracudanetworks.com include:spf.mandrillapp.com -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✗ Missing

No DMARC record — emails cannot be rejected on auth failure.

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

3 records
  • SPFv=spf1 include:spf.protection.outlook.com include:spf.ess.barracudanetworks.com include:spf.mandrillapp.com -all
  • Domain managed by Electronica Steren SA de CV
  • ugkvce5g8q5kp8l90hrjtpl8n5
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 steren.com.co

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

No credit card required
Get 1,000 Free Credits