Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
s121.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-20 11:38:59 UTC · ↺ Refresh
MX Hostnames
- s121-com.mail.protection.outlook.com
MX Priorities
- s121-com.mail.protection.outlook.com: 0
A / AAAA Records
- 3.33.251.168 ↩ aec037177372cc6cd.awsglobalaccelerator.com
- 15.197.225.128 ↩ aec037177372cc6cd.awsglobalaccelerator.com
Mail Server IPs
No IPs resolved.
SOA Record
Raw SOA
ns57.domaincontrol.com dns.jomax.net 2026021201 28800 7200 604800 600
Primary NS (mname)
ns57.domaincontrol.com
Admin Email (rname)
dns@jomax.net
Serial
2026021201
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
600s
Nameservers (NS)
ns57.domaincontrol.com
ns58.domaincontrol.com
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ MissingNo DMARC record — emails cannot be rejected on auth failure.
DKIM Selectors
✗ None detectedNo DKIM records found for common selectors — your provider may use a custom selector name.
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
2 records- NETORGFT5472816.onmicrosoft.com
- SPFv=spf1 include:spf.protection.outlook.com -all
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