Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
diacedu.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-18 18:42:39 UTC · ↺ Refresh
MX Hostnames
- diacedu-com.mail.protection.outlook.com
MX Priorities
- diacedu-com.mail.protection.outlook.com: 0
A / AAAA Records
- 165.160.13.20 (no PTR)
- 165.160.15.20 (no PTR)
Mail Server IPs
- 52.101.73.16 ↩ mail-as2pr05cu00100.inbound.protection.outlook.com
- 52.101.73.12 ↩ mail-am4pr0401cu00104.inbound.protection.outlook.com
- 52.101.68.27 ↩ mail-db7pr03cu00503.inbound.protection.outlook.com
- 52.101.68.0 ↩ mail-db3pr0202cu00100.inbound.protection.outlook.com
SOA Record
Raw SOA
dns1.cscdns.net hostmaster.cscdns.net 2017011916 28800 7200 604800 86400
Primary NS (mname)
dns1.cscdns.net
Admin Email (rname)
hostmaster@cscdns.net
Serial
2017011916
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
86400s
Nameservers (NS)
dns2.cscdns.net
dns1.cscdns.net
SPF Record
✓ Strict (-all)
v=spf1 include:_u.diacedu.com._spf.smart.ondmarc.com -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; pct=100; sp=reject; rua=mailto:[email protected]; ruf=mailto:[email protected]; adkim=r; aspf=r; fo=0; rf=afrf; ri=3600
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: reject
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._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
2 records- SPFv=spf1 include:_u.diacedu.com._spf.smart.ondmarc.com -all
- MS=ms29867025
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