randomhouse.com

Valid Email Server
Domain Lookup › randomhouse.com

Domain Overview

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

Checked via [email protected] · 2026-03-18 20:59:04 UTC · ↺ Refresh

MX Hostnames

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

MX Priorities

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

A / AAAA Records

  • 170.171.208.12 (no PTR)

Mail Server IPs

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

SOA Record

Raw SOA ns1.prh.com postmaster.randomhouse.com 802718 28800 3600 604800 28800
Primary NS (mname)
ns1.prh.com
Admin Email (rname)
postmaster@randomhouse.com
Serial
802718
Refresh
28800s
Retry
3600s
Expire
604800s
Minimum TTL
28800s

Nameservers (NS)

ns2.prh.com
ns1.prh.com

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; 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

9 records
  • mMeYa24w85lzH0nHjojrOfMGlQcEy8UNTqASxsQNWXfiJQk/BiUD1OOz/Sck5v1sEZpHzKJrtxgZw/3trXwovQ==
  • 9p6r+17hOkZxqzw9YnQt5WnFkAdxglNU7NbMKWtDLIVdqAKH3yxzzO/ya681xc+i5K/bQiZcApmvQPjmNZYbEQ==
  • globalsign-domain-verification=KaParXxs1OHDy7o8CMbPpHBN-2m_mzwdPqKMMQ66a6
  • aq+sKMbT9943h3QSyo5+uII4luIxhbO3jB4lic8NRan8KPYsKxvbPXUIkf/39pgvxkmsLS+fsyY8gtU6l0BuHQ==
  • SPFv=spf1 include:%{i}._ip.%{h}._ehlo.%{d}._spf.vali.email ~all
  • atlassian-domain-verification=Kl3ByU1tsfV9fKiC7TDDZYz1uCeTeUo0SSEh5SitZ9q99Ua74O571fgiIg//j5Hn
  • qhp99ovh4or2b4ie7ju569mgla
  • 6981mi0mv7p4b1rigrrut2ta94
  • apple-domain-verification=yZTS6KwXN8ggGgKb
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