pre4u.com

Valid Email Server
Domain Lookup › pre4u.com

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
pre4u.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-03-18 01:12:43 UTC · ↺ Refresh

MX Hostnames

  • pre4u-com.mail.protection.outlook.com

MX Priorities

  • pre4u-com.mail.protection.outlook.com: 0

A / AAAA Records

  • 204.232.141.225 (no PTR)

Mail Server IPs

  • 52.101.42.18 ↩ mail-co1pr03cu00302.inbound.protection.outlook.com
  • 52.101.41.26 ↩ mail-sj0pr03cu01702.inbound.protection.outlook.com
  • 52.101.194.3 ↩ mail-ch1pr04cu00103.inbound.protection.outlook.com
  • 52.101.8.42 ↩ mail-dm6pr03cu00402.inbound.protection.outlook.com
  • 2a01:111:f403:f90d:: ↩ mail-sn1pr0501cu00200.inbound.protection.outlook.com
  • 2a01:111:f403:f804::2 ↩ mail-co1pr05cu00402.inbound.protection.outlook.com
  • 2a01:111:f403:c927::1 ↩ mail-bn8pr05cu00301.inbound.protection.outlook.com
  • 2a01:111:f403:f90a::1 ↩ mail-bn8pr03cu00201.inbound.protection.outlook.com

SOA Record

Raw SOA ns1.p68.dns.oraclecloud.net hostmaster.pre4u.com 452 3600 600 604800 1800
Primary NS (mname)
ns1.p68.dns.oraclecloud.net
Admin Email (rname)
hostmaster@pre4u.com
Serial
452
Refresh
3600s
Retry
600s
Expire
604800s
Minimum TTL
1800s

Nameservers (NS)

ns2.p68.dns.oraclecloud.net
ns1.p68.dns.oraclecloud.net
ns4.p68.dns.oraclecloud.net
ns3.p68.dns.oraclecloud.net

SPF Record

✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✗ Missing

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

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

4 records
  • SPFv=spf1 include:spf.protection.outlook.com -all
  • u3e-j14gCTuNpBhikqnws0GLFaStaUKZX2-gMAoP5B8
  • google-site-verification=S0vsde5PUEqBFdGZsrUWPUXjyjh1N_iDYMKFaqWhKdc
  • MS=ms15556289
Full email verification for pre4u.com

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