Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
jacobsonrost.com
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-22 20:54:25 UTC · ↺ Refresh
MX Hostnames
- jacobsonrost-com.mx1.arsmtp.com
- jacobsonrost-com.mx2.arsmtp.com
MX Priorities
- jacobsonrost-com.mx1.arsmtp.com: 10
- jacobsonrost-com.mx2.arsmtp.com: 20
A / AAAA Records
- 198.49.23.144 (no PTR)
- 198.185.159.144 (no PTR)
- 198.49.23.145 (no PTR)
- 198.185.159.145 (no PTR)
Mail Server IPs
- 8.31.233.250 ↩ server2028.appriver.com
- 8.19.118.191 ↩ server2029.appriver.com
SOA Record
Raw SOA
ns95.worldnic.com namehost.worldnic.com 124032709 10800 3600 604800 3600
Primary NS (mname)
ns95.worldnic.com
Admin Email (rname)
namehost@worldnic.com
Serial
124032709
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
3600s
Nameservers (NS)
ns95.worldnic.com
ns96.worldnic.com
SPF Record
✓ Soft Fail (~all)
v=spf1 include:spf.protection.outlook.com include:_spf.prod.hydra.sophos.com ~all
📊 DNS lookups: 2/10
~ Soft fail (~all) — moderate 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
3 records- SPFv=spf1 include:spf.protection.outlook.com include:_spf.prod.hydra.sophos.com ~all
- sophos-domain-verification=d4daae1f02f32710b8ebea4c071fb24c4732d704
- sophos-domain-verification=9a651d5c071de6e8d1b4c80810d61cd8be1f208916236355799e0ac6cead8012
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