Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
sheldonmfg.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-21 04:06:29 UTC · ↺ Refresh
MX Hostnames
- sheldonmfg-com.mail.protection.outlook.com
MX Priorities
- sheldonmfg-com.mail.protection.outlook.com: 0
A / AAAA Records
- 198.1.74.166 ↩ server.sheldonmanufacturing.com
Mail Server IPs
- 52.101.194.3 ↩ mail-ch1pr04cu00103.inbound.protection.outlook.com
- 52.101.11.19 ↩ mail-sa9pr04cu00203.inbound.protection.outlook.com
- 52.101.10.16 ↩ mail-bn6pr21cu00500.inbound.protection.outlook.com
- 52.101.50.7 ↩ mail-co1pr21cu00207.inbound.protection.outlook.com
- 2a01:111:f403:c92c::2 ↩ mail-dm2pr04cu00102.inbound.protection.outlook.com
- 2a01:111:f403:f905::4 ↩ mail-dm2pr04cu00404.inbound.protection.outlook.com
- 2a01:111:f403:f913:: ↩ mail-cy1pr03cu00100.inbound.protection.outlook.com
- 2a01:111:f403:f802::2 ↩ mail-sj2pr05cu00202.inbound.protection.outlook.com
SOA Record
Raw SOA
ns1.sheldonmanufacturing.com chris.offwhite.com 2023022100 3600 7200 1209600 300
Primary NS (mname)
ns1.sheldonmanufacturing.com
Admin Email (rname)
chris@offwhite.com
Serial
2023022100
Refresh
3600s
Retry
7200s
Expire
1209600s
Minimum TTL
300s
Nameservers (NS)
ns2.sheldonmanufacturing.com
ns1.sheldonmanufacturing.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
✓ 1 found
default._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: default
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
2 records- MS=ms29116758
- SPFv=spf1 include:spf.protection.outlook.com -all
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