lubinolson.com

Valid Email Server
Domain Lookup › lubinolson.com

Domain Overview

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

Checked via [email protected] · 2026-03-20 18:24:17 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

  • 141.193.213.10 (no PTR)
  • 141.193.213.11 (no PTR)

Mail Server IPs

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

SOA Record

Raw SOA auth1.dns.cogentco.com dns.cogentco.com 2025121101 10800 3600 604800 43200
Primary NS (mname)
auth1.dns.cogentco.com
Admin Email (rname)
dns@cogentco.com
Serial
2025121101
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
43200s

Nameservers (NS)

auth2.dns.cogentco.com
auth1.dns.cogentco.com

SPF Record

✓ Soft Fail (~all)
v=spf1 ip4:38.99.44.122 include:_netblocks.mimecast.com include:spf.protection.outlook.com include:_spf.psm.knowbe4.com ~all
📊 DNS lookups: 3/10
~ Soft fail (~all) — moderate enforcement

DMARC Record

✗ p=none
v=DMARC1; p=none;
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)

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

3 records
  • SPFv=spf1 ip4:38.99.44.122 include:_netblocks.mimecast.com include:spf.protection.outlook.com include:_spf.psm.knowbe4.com ~all
  • 0ed1fe018a3999fb8e72d84a09a0ef45358b082ecd
  • MS=ms48201649
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