Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
csosa.gov
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-25 20:17:20 UTC · ↺ Refresh
MX Hostnames
- Csosao365.mail.protection.outlook.com
MX Priorities
- csosao365.mail.protection.outlook.com: 1
A / AAAA Records
- 20.119.16.5 (no PTR)
Mail Server IPs
- 52.101.9.19 ↩ mail-blapr09cu00103.inbound.protection.outlook.com
- 52.101.8.52 ↩ mail-ds0pr09cu00104.inbound.protection.outlook.com
- 52.101.11.12 ↩ mail-sa9pr09cu00104.inbound.protection.outlook.com
- 52.101.8.50 ↩ mail-dm6pr09cu00202.inbound.protection.outlook.com
SOA Record
Raw SOA
khalid.ns.cloudflare.com dns.cloudflare.com 2399776683 10000 2400 604800 1800
Primary NS (mname)
khalid.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2399776683
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
khalid.ns.cloudflare.com
lucy.ns.cloudflare.com
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; rua=mailto:[email protected],mailto:[email protected]; ruf=mailto:[email protected],mailto:[email protected]
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected],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
4 records- apple-domain-verification=MpfmrI8fL9pST2cH
- SPFv=spf1 include:spf.protection.outlook.com -all
- 28Aug2023
- Bc/mjcbd3i6UMg93cDJNCnHMZSALwfcjjzaL1KiwY+E8y/ys1UEOc6A/wObb5BN3bX5kqXOYAisG+J/VQZa3aA==
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