brownsims.com

Valid Email Server
Domain Lookup › brownsims.com

Domain Overview

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

Checked via [email protected] · 2026-03-29 08:51:43 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

  • 216.157.108.97 ↩ d89d6c61.client-ipv4.firmseek.net
  • 72.32.131.23 ↩ www-dispatch.firmseek.com

Mail Server IPs

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

SOA Record

Raw SOA ns67.domaincontrol.com dns.jomax.net 2026021307 28800 7200 604800 600
Primary NS (mname)
ns67.domaincontrol.com
Admin Email (rname)
dns@jomax.net
Serial
2026021307
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
600s

Nameservers (NS)

ns67.domaincontrol.com
ns68.domaincontrol.com

SPF Record

✓ Strict (-all)
v=spf1 include:us._netblocks.mimecast.com ip4:4.17.90.98 ip4:4.17.90.108 ip4:67.111.38.254 ip4:216.223.185.37 include:spf.protection.outlook.com -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✗ p=none
v=DMARC1; p=none; rua=mailto:[email protected]; ruf=mailto:[email protected]; fo=1;
⚠ p=none — monitoring only, no enforcement
📋 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

3 records
  • 0ed1fe018a83042fe6dfe248448a03cbdb54ed645c
  • 89q9259cp65t109lpfileil7bq
  • SPFv=spf1 include:us._netblocks.mimecast.com ip4:4.17.90.98 ip4:4.17.90.108 ip4:67.111.38.254 ip4:216.223.185.37 include:spf.protection.outlook.com -all
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