cliu.org

Valid Email Server

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
cliu.org
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-04-02 17:28:29 UTC · ↺ Refresh

MX Hostnames

  • smtp.cliu.org
  • cliu-org.mail.protection.outlook.com
  • mail2.cliu.org
  • mail3.cliu.org

MX Priorities

  • mail2.cliu.org: 12816
  • mail3.cliu.org: 12832
  • cliu-org.mail.protection.outlook.com: 1
  • smtp.cliu.org: 12800

A / AAAA Records

  • 104.17.71.73

Mail Server IPs

  • 209.18.48.253 ↩ dns.cliu.org
  • 209.18.48.132 ↩ smtp.cliu.org
  • 52.101.9.14 ↩ mail-bl0pr03cu00206.inbound.protection.outlook.com
  • 52.101.50.4 ↩ mail-co1pr03cu00404.inbound.protection.outlook.com
  • 52.101.41.183 ↩ mail-byapr04cu00307.inbound.protection.outlook.com
  • 52.101.40.1 ↩ mail-cy4pr03cu00101.inbound.protection.outlook.com
  • 2a01:111:f403:c92c::2 ↩ mail-dm2pr04cu00102.inbound.protection.outlook.com
  • 2a01:111:f403:c922::1 ↩ mail-bl0pr05cu00501.inbound.protection.outlook.com
  • 2a01:111:f403:f902::1 ↩ mail-bl2pr02cu00101.inbound.protection.outlook.com
  • 2a01:111:f403:f90c:: ↩ mail-sn1pr03cu00100.inbound.protection.outlook.com

SOA Record

Raw SOA ns1.cliu.org dns.cliu.org 1775072502 16384 2048 1048576 2560
Primary NS (mname)
ns1.cliu.org
Admin Email (rname)
dns@cliu.org
Serial
1775072502
Refresh
16384s
Retry
2048s
Expire
1048576s
Minimum TTL
2560s

Nameservers (NS)

ns1.cliu.org
ns2.cliu.org

SPF Record

✓ Strict (-all)
v=spf1 ip4:72.2.96.0/20 ip4:209.18.48.0/20 ip4:67.220.127.128/25 ip4:54.88.72.44/32 include:spf.protection.outlook.com include:wf.com -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✗ p=none
v=DMARC1; p=none; pct=100; rua=mailto:[email protected], mailto:[email protected]; sp=none; aspf=r;
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
📧 Reports → mailto:[email protected], mailto:[email protected]
↳ Subdomain policy: none

DKIM Selectors

✓ 13 found
google._domainkey
selector1._domainkey
selector2._domainkey
default._domainkey
mail._domainkey
dkim._domainkey
k1._domainkey
s1._domainkey
s2._domainkey
zoho._domainkey
sendgrid._domainkey
mxvault._domainkey
amazonses._domainkey
⚠ Public key (p=) missing in DKIM record for selector google.

Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses

All TXT Records

3 records
  • /HRXFvnTaigWZul15AyFSw7YDvCM67fwsUNuUxUzQEG1KnLoNAblYJwrt0boRQQ7onD45MIEQ5d38tGCBshg==
  • PDQ-602527
  • SPFv=spf1 ip4:72.2.96.0/20 ip4:209.18.48.0/20 ip4:67.220.127.128/25 ip4:54.88.72.44/32 include:spf.protection.outlook.com include:wf.com -all
Full email verification for cliu.org

Run SMTP check, SPF/DKIM/DMARC and catch-all detection.

SPF / DKIM / DMARC Get 1,000 Free Credits