firt.com

Valid Email Server
Domain Lookup › firt.com

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
firt.com
Yes
✓ Yes
Mimecast
No
No
⚠ Yes
No
No
Did you mean: [email protected]

Checked via [email protected] · 2026-03-28 10:01:30 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

  • 96.45.82.43 ↩ redirection.dnsmadeeasy.com
  • 96.45.83.157 ↩ redirection.dnsmadeeasy.com
  • 96.45.83.119 ↩ redirection.dnsmadeeasy.com
  • 96.45.82.236 ↩ redirection.dnsmadeeasy.com

Mail Server IPs

  • 170.10.128.242 ↩ us-smtp-inbound-1.mimecast.com
  • 170.10.132.221 ↩ us-smtp-inbound-1.mimecast.com
  • 170.10.128.221 ↩ us-smtp-inbound-2.mimecast.com
  • 170.10.128.141 ↩ us-smtp-inbound-1.mimecast.com
  • 170.10.132.141 ↩ 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 2009010117 43200 3600 1209600 180
Primary NS (mname)
ns10.digicertdns.com
Admin Email (rname)
dns@digicertdns.com
Serial
2009010117
Refresh
43200s
Retry
3600s
Expire
1209600s
Minimum TTL
180s

Nameservers (NS)

ns15.digicertdns.net
ns14.digicertdns.net
ns11.digicertdns.com
ns10.digicertdns.com
ns13.digicertdns.net
ns12.digicertdns.com

SPF Record

✓ Strict (-all)
v=spf1 mx ip4:209.190.215.32/28 ip4:208.58.148.32/27 ip4:216.80.0.34 ip4:107.0.70.32/27 include:_netblocks.mimecast.com -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

✗ 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

2 records
  • SPFv=spf1 mx ip4:209.190.215.32/28 ip4:208.58.148.32/27 ip4:216.80.0.34 ip4:107.0.70.32/27 include:_netblocks.mimecast.com -all
  • openai-domain-verification=dv-JQljTFElenvATHchyoktftJi
Full email verification for firt.com

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