Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
prepa.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-24 01:13:51 UTC · ↺ Refresh
MX Hostnames
- prepa-com.mail.protection.outlook.com
MX Priorities
- prepa-com.mail.protection.outlook.com: 10
A / AAAA Records
- 66.129.174.150 (no PTR)
Mail Server IPs
- 52.101.9.19 ↩ mail-blapr09cu00103.inbound.protection.outlook.com
- 52.101.11.12 ↩ mail-sa9pr09cu00104.inbound.protection.outlook.com
- 52.101.8.52 ↩ mail-ds0pr09cu00104.inbound.protection.outlook.com
- 52.101.8.50 ↩ mail-dm6pr09cu00202.inbound.protection.outlook.com
- 2a01:111:f403:f900::1 ↩ mail-blapr09cu00101.inbound.protection.outlook.com
- 2a01:111:f403:f90e::1 ↩ mail-sa9pr09cu00101.inbound.protection.outlook.com
- 2a01:111:f403:f904:: ↩ mail-dm6pr09cu00200.inbound.protection.outlook.com
- 2a01:111:f403:f904::1 ↩ mail-ds0pr09cu00101.inbound.protection.outlook.com
SOA Record
Raw SOA
ns1-04.azure-dns.com azuredns-hostmaster.microsoft.com 1 3600 300 2419200 300
Primary NS (mname)
ns1-04.azure-dns.com
Admin Email (rname)
azuredns-hostmaster@microsoft.com
Serial
1
Refresh
3600s
Retry
300s
Expire
2419200s
Minimum TTL
300s
Nameservers (NS)
ns1-04.azure-dns.com
ns2-04.azure-dns.net
ns3-04.azure-dns.org
ns4-04.azure-dns.info
SPF Record
✓ Soft Fail (~all)
v=spf1 ip4:184.95.6.15 ip4:66.129.174.253 ip4:66.129.174.249 ip4:66.129.174.140 ip4:66.129.174.239 include:_spf.psm.knowbe4.com include:spf.protection.outlook.com include:spf_omcs.oracleoutsourcing.com ~all
📊 DNS lookups: 3/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; pct=100; rua=mailto:[email protected],mailto:[email protected]; ruf=mailto:[email protected]; sp=none; aspf=r; fo=1;
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected],mailto:[email protected]
↳ Subdomain policy: none
DKIM Selectors
✓ 3 found
selector1._domainkey
selector2._domainkey
default._domainkey
✓ Public key: 392 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
11 records- RuNBypuW
- MS=ms40935596
- SPFv=spf1 ip4:184.95.6.15 ip4:66.129.174.253 ip4:66.129.174.249 ip4:66.129.174.140 ip4:66.129.174.239 include:_spf.psm.knowbe4.com include:spf.protection.outlook.com include:spf_omcs.oracleoutsourcing.com ~all
- MvLf1flOK6C0//aXHGMczB5EZ+sg7TYrs8FRsn1SR5uuDaRsDW2/T95NNKr0nGVPj4buFQf1dFCz79+TelfH9A==
- v9gb5f74hakm4ve8f1aacu4mpt
- apple-domain-verification=Dic64LTquXivdMWc
- cisco-ci-domain-verification=482df8c95e27fa5fa0f0d42002fe12a939117676d1c613e5b53f0f1804c2d2f6
- 1ptp1c26d14vfg91vgrcb236wmwykvhb
- ZOOM_verify_j1pPbRcI7MiaAkifahTvu5
- l8qk7dg3sjkgsl2yc941p71r7gs6vh76
- citrix.mobile.ads.otp=42z1fcfo87kpv6ukza3rs
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