rsandf.com

Valid Email Server
Domain Lookup › rsandf.com

Domain Overview

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

Checked via [email protected] · 2026-03-17 21:46:55 UTC · ↺ Refresh

MX Hostnames

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

MX Priorities

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

A / AAAA Records

  • 199.16.173.211 (no PTR)
  • 199.16.172.48 (no PTR)

Mail Server IPs

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

SOA Record

Raw SOA ns-1881.awsdns-43.co.uk awsdns-hostmaster.amazon.com 1 7200 900 1209600 86400
Primary NS (mname)
ns-1881.awsdns-43.co.uk
Admin Email (rname)
awsdns-hostmaster@amazon.com
Serial
1
Refresh
7200s
Retry
900s
Expire
1209600s
Minimum TTL
86400s

Nameservers (NS)

ns-1881.awsdns-43.co.uk
ns-490.awsdns-61.com
ns-770.awsdns-32.net
ns-1174.awsdns-18.org

SPF Record

✓ Soft Fail (~all)
v=spf1 ip4:167.68.0.1/16 redirect=3rvjezzx._spf._d.mim.ec
📊 DNS lookups: 1/10

DMARC Record

✓ Reject
v=DMARC1; p=reject; rua=mailto:[email protected]; ruf=mailto:[email protected]; fo=1;
✓ Reject — strongest protection
📋 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

6 records
  • google-site-verification=hZz8kaVy6a3NArDdO1XAoyqyGVNH2UFl1F-vzZJDYlU
  • SPFv=spf1 ip4:167.68.0.1/16 redirect=3rvjezzx._spf._d.mim.ec
  • 0ed1fe018a4b0ea9f55851477891b849cd2c028975
  • MS=ms71045038
  • adcpjNJH7BODv2xZXTiwfhLrCe20ruaU3hL3BwN4/TPvlSdbERh94iG5ld3lNaNtlQ9aEsXDoJadf7Mrhjt/hg==
  • gASy4sf1DZIUc4N/4tN20aeYSbt0cnzQwov6DFYqefNSjIyXat7lNjP5HJRuslJkJbbBathITuRQdkmpVKEHIw==
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