sys4net.com

Valid Email Server
Domain Lookup › sys4net.com
Live data — DNS records and disposable check were just fetched and saved.

Domain Overview

DNS: ⚡ live Checker: ⚡ live
sys4net.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-09-23 03:25:49 UTC · ↺ Refresh

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MX Hostnames

  • sys4net-com.mail.protection.outlook.com

MX Priorities

  • sys4net-com.mail.protection.outlook.com: 0

A / AAAA Records

  • 104.26.5.97 (no PTR)
  • 172.67.68.35 (no PTR)
  • 104.26.4.97
  • 2606:4700:20::ac43:4423
  • 2606:4700:20::681a:561
  • 2606:4700:20::681a:461

Mail Server IPs

  • 52.101.68.25 ↩ mail-db8pr02cu00101.inbound.protection.outlook.com
  • 52.101.91.21 ↩ mail-matpr05cu00105.inbound.protection.outlook.com
  • 52.101.103.137 ↩ mail-miypr02cu00101.inbound.protection.outlook.com
  • 52.101.181.153 ↩ mail-wa4pr04cu00101.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::c ↩ mail-db9pr02cu00204.inbound.protection.outlook.com
  • 2a01:111:f403:ca48::a ↩ mail-miypr02cu00202.inbound.protection.outlook.com
  • 2a01:111:f403:ca09::28 ↩ mail-am6pr02cu00300.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::10 ↩ mail-dbapr03cu00100.inbound.protection.outlook.com

SOA Record

Raw SOA ara.ns.cloudflare.com dns.cloudflare.com 2414957454 10000 2400 604800 1800
Primary NS (mname)
ara.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2414957454
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s

Nameservers (NS)

ara.ns.cloudflare.com
dion.ns.cloudflare.com

SPF Record

✓ Strict (-all)
v=spf1 a ip4:185.14.56.14 ip4:2.136.242.197 include:spf.protection.outlook.com include:145183693.spf07.hubspotemail.net include:mailgun.org include:mail.registrar.eu -all
📊 DNS lookups: 5/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✓ Reject
v=DMARC1; p=reject; pct=100; fo=1; ri=3600; rua=mailto:[email protected],mailto:[email protected]; ruf=mailto:[email protected],mailto:[email protected];
✓ Reject — strongest protection
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
📧 Reports → mailto:[email protected],mailto:[email protected]

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

7 records
  • facebook-domain-verification=r4mkvpdhzo7di17rip2q8ss0jup70w
  • google-site-verification=CmwsgWf02e2OhPuyJP1J04Q1H6KGPE0UIVNOBB9baoM
  • google-site-verification=qlHVkyOmLTqo0vh2GpyKls0DmR7CoopzwYsc-RH6ozo
  • SPFv=spf1 a ip4:185.14.56.14 ip4:2.136.242.197 include:spf.protection.outlook.com include:145183693.spf07.hubspotemail.net include:mailgun.org include:mail.registrar.eu -all
  • MS=E16ACFDF9A99CE39FFD7B87E1AFD893166EF5AB8
  • MS=ms80432056
  • anthropic-domain-verification-0pd1mg=VvZDgYY5HwvLvoyLxarzhqMIK
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