sigmma.net

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

Domain Overview

DNS: ⚡ live Checker: ⚡ live
sigmma.net
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-09-23 02:24:34 UTC · ↺ Refresh

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MX Hostnames

  • mail.sigmma.net

MX Priorities

  • mail.sigmma.net: 10

A / AAAA Records

  • 44.225.193.227 ↩ ec2-44-225-193-227.us-west-2.compute.amazonaws.com
  • 44.252.191.147 ↩ ec2-44-252-191-147.us-west-2.compute.amazonaws.com

Mail Server IPs

  • 200.58.112.56 ↩ c229.dattaweb.com

SOA Record

Raw SOA ns-1674.awsdns-17.co.uk awsdns-hostmaster.amazon.com 1 7200 900 1209600 86400
Primary NS (mname)
ns-1674.awsdns-17.co.uk
Admin Email (rname)
awsdns-hostmaster@amazon.com
Serial
1
Refresh
7200s
Retry
900s
Expire
1209600s
Minimum TTL
86400s

Nameservers (NS)

ns-1366.awsdns-42.org
ns-151.awsdns-18.com
ns-1674.awsdns-17.co.uk
ns-744.awsdns-29.net

SPF Record

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

DMARC Record

✗ p=none
v=DMARC1; p=none
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)

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

4 records
  • anthropic-domain-verification-57vxdn=Yk6lV71GqytGpz5tO2x1YFg4j
  • google-site-verification=IU0t4B5ILSRm_L8_nE-yMoishoCRHQ07nHikNkKHBSE
  • hubspot-developer-verification=MjRhMDJkMWQtZDY4YS00ZmRmLTgwY2ItOThhYWE4MWZmNmYy
  • SPFv=spf1 include:spf.hostmar.com -all
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