Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
systemlifeline.com
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-20 18:04:00 UTC · ↺ Refresh
MX Hostnames
- spam1.hosted.systemlifeline.com
- spam2.hosted.systemlifeline.com
MX Priorities
- spam1.hosted.systemlifeline.com: 10
- spam2.hosted.systemlifeline.com: 10
A / AAAA Records
- 23.176.0.94 ↩ host2.systemlifeline.com
- 2602:ff70:: (no PTR)
Mail Server IPs
- 23.176.0.68 ↩ spam1.hosted.systemlifeline.com
- 205.207.142.234 ↩ spam2.hosted.systemlifeline.com
SOA Record
Raw SOA
ns3.systemlifeline.com jpagano.systemlifeline.com 2026030500 3600 1800 1209600 60
Primary NS (mname)
ns3.systemlifeline.com
Admin Email (rname)
jpagano@systemlifeline.com
Serial
2026030500
Refresh
3600s
Retry
1800s
Expire
1209600s
Minimum TTL
60s
Nameservers (NS)
ns3.systemlifeline.com
ns4.systemlifeline.com
SPF Record
✓ Strict (-all)
v=spf1 +a +mx +ip4:23.176.0.94 +ip4:23.176.0.77 -all
📊 DNS lookups: 2/10
✓ 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: 216 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
1 record- SPFv=spf1 +a +mx +ip4:23.176.0.94 +ip4:23.176.0.77 -all
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