hollandhart.com

Valid Email Server
Domain Lookup › hollandhart.com

Domain Overview

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

Checked via [email protected] · 2026-03-23 14:36:10 UTC · ↺ Refresh

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MX Hostnames

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

MX Priorities

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

A / AAAA Records

  • 40.112.243.42 (no PTR)

Mail Server IPs

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

SOA Record

Raw SOA ns1-08.azure-dns.com abuse.centurylinkservices.com 2240603000 3600 1800 604800 300
Primary NS (mname)
ns1-08.azure-dns.com
Admin Email (rname)
abuse@centurylinkservices.com
Serial
2240603000
Refresh
3600s
Retry
1800s
Expire
604800s
Minimum TTL
300s

Nameservers (NS)

ns1-08.azure-dns.com
ns2-08.azure-dns.net
ns3-08.azure-dns.org
ns4-08.azure-dns.info

SPF Record

✓ Soft Fail (~all)
v=spf1 include:%{i}._ip.%{h}._ehlo.%{d}._spf.vali.email ~all
📊 DNS lookups: 1/10
~ Soft fail (~all) — moderate enforcement

DMARC Record

~ Quarantine
v=DMARC1; p=quarantine; sp=quarantine; rua=mailto:[email protected],mailto:[email protected]; ruf=mailto:[email protected]; fo=1
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
📧 Reports → mailto:[email protected],mailto:[email protected]
↳ Subdomain policy: quarantine

DKIM Selectors

✓ 4 found
selector1._domainkey
selector2._domainkey
s1._domainkey
s2._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: selector1

Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses

All TXT Records

15 records
  • QT+ZApCVOBLAKu91dJy/q5CKS0ELwmyFSY3u48Jj4noD5+yWkwhyT1QOqU1IfgXWOwvEh36jSB4h1fKLm3lMhg==
  • duo_sso_verification=hE6LFFyVp33dNCYn5ZqH6OgS3iKlff7tKYhLzUmW7WQxEmlBkFH6WWseTCF6Ttzs
  • jamf-site-verification=9WZgUnaR8nNfwQVzOR3FrA
  • _globalsign-domain-verification=ln6G6qMbrMeJLZSOGjjxis2fcs9NHicunfT-JK_mCZ
  • adobe-idp-site-verification=be5298c8b3f86b596f3ae9167ca8c286fe5edb1c4f0e7035bde5051ebe6fc3f4
  • atlassian-domain-verification=EtdmQGCHeLa80fWPvN6X0U3TlvQtfXokZjIYQotNWRcnMtQG6GpDCPRbeoYITBiY
  • AumZ3Cn4A/+Eor5epJxqEn9oJlFmDJwvhmy1WG2V1navr+wAeEJx8Pxdt1f+JLsLXKE/yoiyiIhG3Dlba1UzHQ==
  • ciscocidomainverification=15d07ff7070ad0a1a3124cf062a1dce62d1bf914d9b8706d17d59bf608f3dbc0
  • google-site-verification=aUVxiC1X-zvxg0JJltd_e1uvcrEThlh22jVgBTNzdj8
  • MS=ms30119640
  • MS=ms49395517
  • SPFv=spf1 include:%{i}._ip.%{h}._ehlo.%{d}._spf.vali.email ~all
  • ZOOM_verify_iCqUtoN4bukRiSWAEyJEer
  • apple-domain-verification=avuKc3FR6LAk6XkG
  • MS=ms43345242
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