Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
esup.edu.pe
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-04-01 09:08:27 UTC · ↺ Refresh
MX Hostnames
- esup-edu-pe.mail.protection.outlook.com
MX Priorities
- esup-edu-pe.mail.protection.outlook.com: 0
A / AAAA Records
- 38.187.18.194 ↩ 38-187-18-194.nextnet.com.pe
Mail Server IPs
- 52.101.194.15 ↩ mail-ch4pr21cu00107.inbound.protection.outlook.com
- 52.101.9.12 ↩ mail-bl0pr05cu00504.inbound.protection.outlook.com
- 52.101.42.18 ↩ mail-co1pr03cu00302.inbound.protection.outlook.com
- 52.101.8.46 ↩ mail-dm6pr05cu00406.inbound.protection.outlook.com
- 2a01:111:f403:c936:: ↩ mail-cy1pr05cu00400.inbound.protection.outlook.com
- 2a01:111:f403:c922::2 ↩ mail-bl0pr02cu00702.inbound.protection.outlook.com
- 2a01:111:f403:f90c:: ↩ mail-sn1pr03cu00100.inbound.protection.outlook.com
- 2a01:111:f403:c902::1 ↩ mail-sj2pr05cu00401.inbound.protection.outlook.com
SOA Record
Raw SOA
ns1.nextnet.com.pe hostmaster.nextnet.com.pe 2025010202 3600 3600 604800 600
Primary NS (mname)
ns1.nextnet.com.pe
Admin Email (rname)
hostmaster@nextnet.com.pe
Serial
2025010202
Refresh
3600s
Retry
3600s
Expire
604800s
Minimum TTL
600s
Nameservers (NS)
ns2.nextnet.com.pe
ns1.nextnet.com.pe
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=ms53522261
- 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 · Customize →
See demo & docs
Deep verification
Full email verification for esup.edu.pe
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits