rsclark.org

Valid Email Server
Domain Lookup › rsclark.org

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
rsclark.org
Yes
✓ Yes
Mimecast
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-27 22:43:03 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

  • 198.185.159.145 (no PTR)
  • 198.185.159.144 (no PTR)
  • 198.49.23.145 (no PTR)
  • 198.49.23.144 (no PTR)

Mail Server IPs

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

SOA Record

Raw SOA ns10.dnsmadeeasy.com dns.dnsmadeeasy.com 2009010125 43200 3600 1209600 180
Primary NS (mname)
ns10.dnsmadeeasy.com
Admin Email (rname)
dns@dnsmadeeasy.com
Serial
2009010125
Refresh
43200s
Retry
3600s
Expire
1209600s
Minimum TTL
180s

Nameservers (NS)

ns11.tabush.net
ns15.tabush.net
ns10.tabush.net
ns13.tabush.net
ns12.tabush.net
ns14.tabush.net

SPF Record

✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com include:spf.mandrillapp.com -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✗ Missing

No DMARC record — emails cannot be rejected on auth failure.

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
  • MS=ms98175953
  • SPFv=spf1 include:spf.protection.outlook.com include:spf.mandrillapp.com -all
  • SPFv=spf1 include:us._netblocks.mimecast.com include:spf.protection.outlook.com -all
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