sisk.com

Valid Email Server
Domain Lookup › sisk.com

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
sisk.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-03-21 11:20:40 UTC · ↺ Refresh

MX Hostnames

  • sisk-com.mail.protection.outlook.com

MX Priorities

  • sisk-com.mail.protection.outlook.com: 0

A / AAAA Records

  • 185.224.198.6 ↩ vps146.fastsecurehost.com

Mail Server IPs

  • 52.101.73.22 ↩ mail-am7pr05cu00106.inbound.protection.outlook.com
  • 52.101.68.0 ↩ mail-db3pr0202cu00100.inbound.protection.outlook.com
  • 52.101.68.21 ↩ mail-db4pr02cu00205.inbound.protection.outlook.com
  • 52.101.68.18 ↩ mail-db4pr02cu00302.inbound.protection.outlook.com

SOA Record

Raw SOA ns1.blacknightdns.com hostmaster.sisk.com 2025051401 900 900 604800 60
Primary NS (mname)
ns1.blacknightdns.com
Admin Email (rname)
hostmaster@sisk.com
Serial
2025051401
Refresh
900s
Retry
900s
Expire
604800s
Minimum TTL
60s

Nameservers (NS)

ns4.blacknightdns.com
ns1.blacknightdns.com
ns2.blacknightdns.com
ns3.blacknightdns.com

SPF Record

✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✗ p=none
v=DMARC1; p=none; rua=mailto:[email protected]; pct=20;
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
⚠ Policy applies to 20% of failing messages only

DKIM Selectors

✗ None detected

No 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 include:spf.protection.outlook.com -all
  • MS=ms85197660
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