leespring.com

Valid Email Server
Domain Lookup › leespring.com

Domain Overview

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

Checked via [email protected] · 2026-03-24 20:14:52 UTC · ↺ Refresh

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

  • 3.21.179.219 ↩ ec2-3-21-179-219.us-east-2.compute.amazonaws.com

Mail Server IPs

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

SOA Record

Raw SOA jack.ns.cloudflare.com dns.cloudflare.com 2399788831 10000 2400 604800 1800
Primary NS (mname)
jack.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2399788831
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s

Nameservers (NS)

jack.ns.cloudflare.com
zara.ns.cloudflare.com

SPF Record

✓ Strict (-all)
v=spf1 a ip4:148.170.231.254/28 ip4:103.47.205.174/32 include:us._netblocks.mimecast.com include:_spf.messagegears.net -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected]
~ Quarantine — good protection (failing mail goes to spam)
📋 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

6 records
  • google-site-verification=Ajt5L8TESGRL2K4X_oZs3aEjK3HctTaS66wfucWwkdk
  • SPFv=spf1 a ip4:148.170.231.254/28 ip4:103.47.205.174/32 include:us._netblocks.mimecast.com include:_spf.messagegears.net -all
  • zjbyxfdf1j6dp1ghcydy7hqt1fp98pkw
  • BAbnm7Ou/7teEbaxMwfpSGducPU2uPAIgRdtC2zHUK31yAT3K5kQxpAY4ZsGVJnLJMd8qNbkdUxTXy7j+XwL1w==
  • _lf7knmlf97ptqfhbv1lasq67ztx7lu5
  • bw=m0HjLLmDy97dZXeqIWLQwoV6ZXrWfByvWqtoyp33LgTM
Full email verification for leespring.com

Run SMTP check, SPF/DKIM/DMARC and catch-all detection.

SPF / DKIM / DMARC Get 1,000 Free Credits