fmdefense.com

Valid Email Server
Domain Lookup › fmdefense.com

Domain Overview

DNS: ✓ 8h ago Checker: ✓ 8h ago
fmdefense.com
Yes
✓ Yes
Mimecast
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-07-02 10:30:09 UTC · ↺ Refresh

Add email validation to your forms — free

Add our free script to block 10,000+ disposable domains + perform other checks. No signup, unlimited checks.

MX validation Disposable detection Role accounts
Add to your signup form
<script src="https://check.verifyswift.com/"></script>
One line · No registration · See full docs & demo → · Customize →

MX Hostnames

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

MX Priorities

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

A / AAAA Records

  • 199.60.103.30 (no PTR)

Mail Server IPs

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

SOA Record

Raw SOA ns-1119.awsdns-11.org awsdns-hostmaster.amazon.com 1 7200 900 1209600 86400
Primary NS (mname)
ns-1119.awsdns-11.org
Admin Email (rname)
awsdns-hostmaster@amazon.com
Serial
1
Refresh
7200s
Retry
900s
Expire
1209600s
Minimum TTL
86400s

Nameservers (NS)

ns-317.awsdns-39.com
ns-739.awsdns-28.net
ns-1119.awsdns-11.org
ns-1620.awsdns-10.co.uk

SPF Record

✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com ip4:198.190.31.19 ip4:143.170.170.210 ip4:66.117.219.96/27 ip4:66.193.32.102 ip4:143.170.172.35 include:_spf.salesforce.com include:dayforcehcm.com include:us._netblocks.mimecast.com include:3803629.spf02.hubspotemail.net -all
📊 DNS lookups: 5/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✗ p=none
v=DMARC1;p=none;sp=none;pct=100;rua=mailto:[email protected];ruf=mailto:[email protected];ri=86400;aspf=r;adkim=r;fo=1
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: none

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
  • docusign=dd00564b-f236-4be3-9334-efc5bc3e4b8a
  • SPFv=spf1 include:spf.protection.outlook.com ip4:198.190.31.19 ip4:143.170.170.210 ip4:66.117.219.96/27 ip4:66.193.32.102 ip4:143.170.172.35 include:_spf.salesforce.com include:dayforcehcm.com include:us._netblocks.mimecast.com include:3803629.spf02.hubspotemail.net -all
  • 00D1I0000002n4F=1TBcr000000020F
  • 00Dcn000004WbIH=1TBcn00000002rT
  • 2n5jftum9ei3nt69o01chvi0e1
  • 5a3gqema1doi1orhe92r2cirmm
  • ZOOM_verify_IE65qtAyklb5rIX442iBe6
  • adobe-idp-site-verification=2da7e7c72742e4b2c6473eacf06b9c898fa44c3b23d6e994ff2550b8c16251e6
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 · Customize →
See demo & docs
Deep verification
Full email verification for fmdefense.com

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

No credit card required
Get 1,000 Free Credits