primusbuilders.com

Valid Email Server
Domain Lookup › primusbuilders.com

Domain Overview

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

Checked via [email protected] · 2026-03-18 20:40:50 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

  • 35.237.90.74 ↩ 74.90.237.35.bc.googleusercontent.com

Mail Server IPs

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

SOA Record

Raw SOA ns77.worldnic.com namehost.worldnic.com 126030316 10800 3600 604800 3600
Primary NS (mname)
ns77.worldnic.com
Admin Email (rname)
namehost@worldnic.com
Serial
126030316
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
3600s

Nameservers (NS)

ns78.worldnic.com
ns77.worldnic.com

SPF Record

✓ Soft Fail (~all)
v=spf1 include:publicsafetycloud.net include:us._netblocks.mimecast.com include:spf.mtasv.net include:_spf.createsend.com include:spf-us.emailsignatures365.com include:turbo-smtp.com include:relay.mailchannels.net ~all
📊 DNS lookups: 7/10
~ Soft fail (~all) — moderate enforcement

DMARC Record

✗ p=none
v=DMARC1; p=none; sp=none; rua=mailto:[email protected]; ruf=mailto:[email protected]; adkim=r; aspf=r; ri=86400; rf=afrf; pct=100
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: none

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

8 records
  • kujj5mi5q8528b6tsgf5pg93te
  • snj6otgfcd81ljurdld6obn1il
  • dropbox-domain-verification=ob7jds1hyfxc
  • duo_sso_verification=IEJc6zj6lWf8AFeEoc2csbFWYIa4bcTqrpVQNYfrBeowbvzlP3M8aERDHUgzCobu
  • 9hvje7c09g2onukq6hq7tv1b3h
  • MS=ms13738680
  • 0ed1fe018a8ad607fa00c546b288cdaf4ecff6abb1
  • SPFv=spf1 include:publicsafetycloud.net include:us._netblocks.mimecast.com include:spf.mtasv.net include:_spf.createsend.com include:spf-us.emailsignatures365.com include:turbo-smtp.com include:relay.mailchannels.net ~all
Free · No signup required
Add email validation to your forms

Block disposable emails, validate MX records, detect role accounts — unlimited, forever free.

<script src="https://check.verifyswift.com/"></script>
One line of code · Works on any site
See demo & docs
Deep verification
Full email verification for primusbuilders.com

SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.

No credit card required
Get 1,000 Free Credits