gncoinc.com

Valid Email Server
Domain Lookup › gncoinc.com

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
gncoinc.com
Yes
✓ Yes
Mimecast
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-18 20:16:51 UTC · ↺ Refresh

MX Hostnames

  • us-smtp-inbound-2.mimecast.com
  • us-smtp-inbound-1.mimecast.com

MX Priorities

  • us-smtp-inbound-1.mimecast.com: 10
  • us-smtp-inbound-2.mimecast.com: 10

A / AAAA Records

  • 66.175.212.108 ↩ lb1-c123-pub.pressidium.com
  • 45.79.164.152 ↩ lb2-c123-pub.pressidium.com

Mail Server IPs

  • 170.10.132.141 ↩ us-smtp-inbound-2.mimecast.com
  • 170.10.128.221 ↩ us-smtp-inbound-1.mimecast.com
  • 170.10.128.242 ↩ us-smtp-inbound-1.mimecast.com
  • 170.10.128.141 ↩ us-smtp-inbound-2.mimecast.com
  • 170.10.132.221 ↩ us-smtp-inbound-1.mimecast.com
  • 170.10.132.242 ↩ us-smtp-inbound-2.mimecast.com

SOA Record

Raw SOA ns10.digicertdns.com dns.digicertdns.com 2009010131 43200 3600 1209600 180
Primary NS (mname)
ns10.digicertdns.com
Admin Email (rname)
dns@digicertdns.com
Serial
2009010131
Refresh
43200s
Retry
3600s
Expire
1209600s
Minimum TTL
180s

Nameservers (NS)

ns1.dnsmadeeasy.com
ns2.dnsmadeeasy.com
ns0.dnsmadeeasy.com
ns4.dnsmadeeasy.com
ns3.dnsmadeeasy.com

SPF Record

✓ Strict (-all)
v=spf1 include:us._netblocks.mimecast.com include:spf.protection.outlook.com include:_spf.salesforce.com include:spf.emailsignatures365.com include:spf.myconnectwise.net ip4:65.151.8.84/29 ip4:149.72.147.186/32 ip4:167.89.101.239/32 -all
📊 DNS lookups: 5/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✗ p=none
v=DMARC1; p=none; rua=mailto:[email protected]; ruf=mailto:[email protected]; fo=1;
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
📧 Reports → 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

8 records
  • atlassian-domain-verification=ATTevxpOk604b/1dXUOcKWcM9ot8u6RQicQ9GrWsaaigLWyQehXCdVB62haJE0WS
  • SPFv=spf1 include:us._netblocks.mimecast.com include:spf.protection.outlook.com include:_spf.salesforce.com include:spf.emailsignatures365.com include:spf.myconnectwise.net ip4:65.151.8.84/29 ip4:149.72.147.186/32 ip4:167.89.101.239/32 -all
  • cisco-ci-domain-verification=28709a9ebabfa8381a533647d332a5862ea556cf0f155b9515b4cc85f191350a
  • G2BSTTL4UGKGJRJRCK70Q5UALVAGJPDJ2L5W14YQ
  • MS=ms61892253
  • nitro-verification-code=MTkwOTkzNzM5MzMwNTYwNTY5OA==
  • 0ed1fe018a5fa967b212fb4ef6bef56d29dda639be
  • anthropic-domain-verification-2m672j=qjhjgqNkeuFwsMbvMOwPODn3r
Free · No signup required
Add email validation to your forms

Block disposable emails, validate MX records, detect role accounts — unlimited, forever free.

<script src="https://check.verifyswift.com/"></script>
One line of code · Works on any site
See demo & docs
Deep verification
Full email verification for gncoinc.com

SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.

No credit card required
Get 1,000 Free Credits