Domain Overview
DNS: ✓ 2d ago
Checker: ✓ 2d ago
jtholding.com
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-05-18 14:35:27 UTC · ↺ Refresh
MX Hostnames
- jtholding.com.2.0001.arsmtp.com
- jtholding.com.1.0001.arsmtp.com
MX Priorities
- jtholding.com.2.0001.arsmtp.com: 20
- jtholding.com.1.0001.arsmtp.com: 10
A / AAAA Records
- 74.81.77.100 ↩ mail.plainwhitebox.com
Mail Server IPs
- 8.19.118.196 ↩ server275.appriver.com
- 8.31.233.110 ↩ SERVER274.appriver.com
SOA Record
Raw SOA
ns11.worldnic.com namehost.worldnic.com 118030917 10800 3600 604800 3600
Primary NS (mname)
ns11.worldnic.com
Admin Email (rname)
namehost@worldnic.com
Serial
118030917
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
3600s
Nameservers (NS)
ns12.worldnic.com
ns11.worldnic.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
1 record- SPFv=spf1 include:spf.protection.outlook.com -all
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