Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
sheldonaronson.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-19 12:17:18 UTC · ↺ Refresh
MX Hostnames
- sheldonaronson-com.mail.protection.outlook.com
MX Priorities
- sheldonaronson-com.mail.protection.outlook.com: 0
A / AAAA Records
- 160.153.33.165 ↩ 165.33.153.160.host.secureserver.net
Mail Server IPs
- 52.101.41.58 ↩ mail-sj0pr02cu00102.inbound.protection.outlook.com
- 52.101.11.10 ↩ mail-sa9pr03cu00202.inbound.protection.outlook.com
- 52.101.40.0 ↩ mail-cy5pr03cu00300.inbound.protection.outlook.com
- 52.101.42.16 ↩ mail-co1pr05cu00300.inbound.protection.outlook.com
- 2a01:111:f403:c92c::2 ↩ mail-dm2pr04cu00102.inbound.protection.outlook.com
- 2a01:111:f403:f804::2 ↩ mail-co1pr05cu00402.inbound.protection.outlook.com
- 2a01:111:f403:c91d::a ↩ mail-co1pr21cu00202.inbound.protection.outlook.com
- 2a01:111:f403:c922::1 ↩ mail-bl0pr05cu00501.inbound.protection.outlook.com
SOA Record
Raw SOA
ns51.domaincontrol.com dns.jomax.net 2016050400 86400 7200 3600000 86400
Primary NS (mname)
ns51.domaincontrol.com
Admin Email (rname)
dns@jomax.net
Serial
2016050400
Refresh
86400s
Retry
7200s
Expire
3600000s
Minimum TTL
86400s
Nameservers (NS)
ns52.domaincontrol.com
ns51.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- MS=ms22786820
- SPFv=spf1 include:spf.protection.outlook.com -all
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