Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
sisoft.com
No
None
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-29 09:18:49 UTC · ↺ Refresh
MX Hostnames
No MX records found.
MX Priorities
No priority data.
A / AAAA Records
- 13.92.90.175 (no PTR)
Mail Server IPs
No IPs resolved.
SOA Record
Raw SOA
ns1.markmonitor.com hostmaster.markmonitor.com 2023062703 86400 3600 2592000 172800
Primary NS (mname)
ns1.markmonitor.com
Admin Email (rname)
hostmaster@markmonitor.com
Serial
2023062703
Refresh
86400s
Retry
3600s
Expire
2592000s
Minimum TTL
172800s
Nameservers (NS)
ns6.markmonitor.com
ns7.markmonitor.com
ns1.markmonitor.com
ns2.markmonitor.com
ns3.markmonitor.com
ns4.markmonitor.com
ns5.markmonitor.com
SPF Record
✗ Invalid
v=spf1 -all
📊 DNS lookups: 0/10
⚠ Strict -all with no allowed senders — no servers can send email for this domain.
DMARC Record
✓ Reject
v=DMARC1; p=reject; rua=mailto:[email protected]; ruf=mailto:[email protected]; fo=1;
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
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- SPFv=spf1 -all
- MS=ms39687395
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