nfsrv.com

Valid Email Server
Domain Lookup › nfsrv.com

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
nfsrv.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-27 23:06:50 UTC · ↺ Refresh

MX Hostnames

  • nfsrv-com.mail.protection.outlook.com

MX Priorities

  • nfsrv-com.mail.protection.outlook.com: 10

A / AAAA Records

  • 23.185.0.1 (no PTR)

Mail Server IPs

  • 52.101.190.0 ↩ mail-yt5pr01cu00100.inbound.protection.outlook.com
  • 52.101.190.3 ↩ mail-yt6pr01cu00103.inbound.protection.outlook.com
  • 52.101.192.0 ↩ mail-yqzpr01cu00900.inbound.protection.outlook.com
  • 52.101.190.1 ↩ mail-yt3pr01cu00701.inbound.protection.outlook.com
  • 2a01:111:f403:c942::1 ↩ mail-yt3pr01cu00701.inbound.protection.outlook.com
  • 2a01:111:f403:c944::1 ↩ mail-yqzpr01cu01001.inbound.protection.outlook.com
  • 2a01:111:f403:c942::2 ↩ mail-yt3pr01cu00602.inbound.protection.outlook.com
  • 2a01:111:f403:c944:: ↩ mail-yqzpr01cu00900.inbound.protection.outlook.com

SOA Record

Raw SOA ns41.worldnic.com namehost.worldnic.com 126031209 10800 3600 604800 3600
Primary NS (mname)
ns41.worldnic.com
Admin Email (rname)
namehost@worldnic.com
Serial
126031209
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
3600s

Nameservers (NS)

ns42.worldnic.com
ns41.worldnic.com

SPF Record

✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com include:u2277628.wl.sendgrid.net ip4:74.118.246.37 ip4:34.199.210.185 ip4:74.118.246.31 ip4:50.79.111.61 ip4:52.7.125.133 ip4:146.145.234.157 ip4:52.7.125.133 -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✗ Missing

No DMARC record — emails cannot be rejected on auth failure.

DKIM Selectors

✓ 2 found
s1._domainkey
s2._domainkey
✓ DKIM properly configured for selector: s1

Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses

All TXT Records

4 records
  • SPFv=spf1 include:spf.protection.outlook.com include:u2277628.wl.sendgrid.net ip4:74.118.246.37 ip4:34.199.210.185 ip4:74.118.246.31 ip4:50.79.111.61 ip4:52.7.125.133 ip4:146.145.234.157 ip4:52.7.125.133 -all
  • MS=ms19270620
  • lbvcenfdpbrq700h6uha5qa11f
  • knowbe4-site-verification-d8b404c73494eee7ee7388febb2dabb2
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