rsconst.com

Valid Email Server
Domain Lookup › rsconst.com

Domain Overview

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

Checked via [email protected] · 2026-03-18 20:17:43 UTC · ↺ Refresh

MX Hostnames

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

MX Priorities

  • us-smtp-inbound-2.mimecast.com: 0
  • us-smtp-inbound-1.mimecast.com: 0

A / AAAA Records

  • 40.85.148.219 (no PTR)

Mail Server IPs

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

SOA Record

Raw SOA ns85.worldnic.com namehost.worldnic.com 125121721 10800 3600 604800 3600
Primary NS (mname)
ns85.worldnic.com
Admin Email (rname)
namehost@worldnic.com
Serial
125121721
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
3600s

Nameservers (NS)

ns85.worldnic.com
ns86.worldnic.com

SPF Record

✓ Soft Fail (~all)
v=spf1 include:us._netblocks.mimecast.com ~all
📊 DNS lookups: 1/10
~ Soft fail (~all) — moderate enforcement

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

9 records
  • SPFv=spf1 include:us._netblocks.mimecast.com ~all
  • df7y4sd5pv3j81kvq1824kfmrjwz6jyr
  • gKrs4BGdRjy2+BglY9M4XYlRr5ky+nm2py8yUUgDUWGN7h/lmHLIYQO4HbQdV907CacMltBw7aEsvwR51B2l8Q==
  • knowbe4-site-verification=4d87fe9ff93df4ed1538cc348dbc4e6d
  • MS=ms40845316
  • c33fc04b2c955a2f3aca305375ddf177
  • duo_sso_verification=hQf362mzHEyNdO2n6IkLODP0ZjCJpBeWKJZcnofNGcTnTJG3y2rGwdkSOQxiCWy6
  • MS=27214882F3209A8A1A6AF290457616B628861BE6
  • workplace-domain-verification=pYaaOGLV5NOJzDIgquqbNpqx2YJoYE
Full email verification for rsconst.com

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