gacworld.com

Valid Email Server
Domain Lookup › gacworld.com

Domain Overview

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

Checked via [email protected] · 2026-03-18 20:24:46 UTC · ↺ Refresh

MX Hostnames

  • gacworld-com.mail.protection.outlook.com
  • eu-smtp-inbound-2.mimecast.com
  • eu-smtp-inbound-1.mimecast.com

MX Priorities

  • eu-smtp-inbound-2.mimecast.com: 10
  • gacworld-com.mail.protection.outlook.com: 30
  • eu-smtp-inbound-1.mimecast.com: 10

A / AAAA Records

No A/AAAA records found.

Mail Server IPs

  • 91.220.42.241 ↩ eu-smtp-inbound-1.mimecast.com
  • 195.130.217.201 ↩ eu-smtp-inbound-1.mimecast.com
  • 195.130.217.241 ↩ eu-smtp-inbound-2.mimecast.com
  • 91.220.42.211 ↩ eu-smtp-inbound-1.mimecast.com
  • 195.130.217.211 ↩ eu-smtp-inbound-2.mimecast.com
  • 91.220.42.201 ↩ eu-smtp-inbound-1.mimecast.com
  • 52.101.68.3 ↩ mail-db7pr03cu00403.inbound.protection.outlook.com
  • 52.101.73.15 ↩ mail-am9pr04cu00107.inbound.protection.outlook.com
  • 52.101.73.11 ↩ mail-am1pr04cu00103.inbound.protection.outlook.com
  • 52.101.73.4 ↩ mail-am0pr83cu00404.inbound.protection.outlook.com
  • 2a01:111:f403:ca04::10
  • 2a01:111:f403:ca09::4
  • 2a01:111:f403:ca04::d
  • 2a01:111:f403:ca09::20

SOA Record

Raw SOA ns1-06.azure-dns.com registry.gac.com 2018022000 3600 600 2419200 600
Primary NS (mname)
ns1-06.azure-dns.com
Admin Email (rname)
registry@gac.com
Serial
2018022000
Refresh
3600s
Retry
600s
Expire
2419200s
Minimum TTL
600s

Nameservers (NS)

ns3-06.azure-dns.org
ns4-06.azure-dns.info
ns3.gwnoc.com
ns4.gwnoc.com
ns1-06.azure-dns.com
ns2-06.azure-dns.net

SPF Record

✓ Strict (-all)
v=spf1 ip4:151.253.19.180 ip4:5.28.51.139 a include:_netblocks.mimecast.com include:spf.protection.outlook.com -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✗ Missing

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

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

1 record
  • SPFv=spf1 ip4:151.253.19.180 ip4:5.28.51.139 a include:_netblocks.mimecast.com include:spf.protection.outlook.com -all
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