usanjose.edu.co

Valid Email Server
Domain Lookup › usanjose.edu.co

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
usanjose.edu.co
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-04-03 01:50:13 UTC · ↺ Refresh

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MX Hostnames

  • usanjose-edu-co.mail.protection.outlook.com

MX Priorities

  • usanjose-edu-co.mail.protection.outlook.com: 30

A / AAAA Records

  • 44.194.192.70 ↩ ec2-44-194-192-70.compute-1.amazonaws.com

Mail Server IPs

  • 52.101.194.15 ↩ mail-ch4pr21cu00107.inbound.protection.outlook.com
  • 52.101.42.18 ↩ mail-co1pr03cu00302.inbound.protection.outlook.com
  • 52.101.194.4 ↩ mail-ch4pr04cu00104.inbound.protection.outlook.com
  • 52.101.11.10 ↩ mail-sa9pr03cu00202.inbound.protection.outlook.com
  • 2a01:111:f403:f901:: ↩ mail-mn2pr04cu00200.inbound.protection.outlook.com
  • 2a01:111:f403:f802:: ↩ mail-byapr05cu00400.inbound.protection.outlook.com
  • 2a01:111:f403:c902::2 ↩ mail-sj0pr03cu01602.inbound.protection.outlook.com
  • 2a01:111:f403:c946::7 ↩ mail-ch5pr02cu00307.inbound.protection.outlook.com

SOA Record

Raw SOA ns-698.awsdns-23.net awsdns-hostmaster.amazon.com 1 7200 900 1209600 86400
Primary NS (mname)
ns-698.awsdns-23.net
Admin Email (rname)
awsdns-hostmaster@amazon.com
Serial
1
Refresh
7200s
Retry
900s
Expire
1209600s
Minimum TTL
86400s

Nameservers (NS)

ns-698.awsdns-23.net
ns-1384.awsdns-45.org
ns-1555.awsdns-02.co.uk
ns-28.awsdns-03.com

SPF Record

✓ Soft Fail (~all)
v=spf1 include:outlook.com include:zcsend.net include:spf.brevo.com ~all
📊 DNS lookups: 3/10
~ Soft fail (~all) — moderate enforcement

DMARC Record

~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected]; rua=mailto:[email protected]; ruf=mailto:[email protected]; fo=1
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]

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

2 records
  • SPFv=spf1 include:outlook.com include:zcsend.net include:spf.brevo.com ~all
  • brevo-code:b87688665e24a60c3524e37db3d499ff
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