Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
iberopuebla.edu.mx
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-04-01 22:05:47 UTC · ↺ Refresh
MX Hostnames
- antispam.iberopuebla.edu.mx
MX Priorities
- antispam.iberopuebla.edu.mx: 10
A / AAAA Records
- 192.100.196.204 ↩ www.iberopuebla.mx
Mail Server IPs
- 192.100.196.219 ↩ antispam.iberopuebla.mx
SOA Record
Raw SOA
dns postmaster.iberopuebla.edu.mx 2020031901 10800 3600 604800 38400
Primary NS (mname)
dns
Admin Email (rname)
postmaster@iberopuebla.edu.mx
Serial
2020031901
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
38400s
Nameservers (NS)
dnsbibero.iberopuebla.edu.mx
dnsibero.iberopuebla.edu.mx
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ MissingNo DMARC record — emails cannot be rejected on auth failure.
DKIM Selectors
✗ None detectedNo 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
2 records- MS=ms34738644
- SPFv=spf1 include:spf.protection.outlook.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 iberopuebla.edu.mx
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits