Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
groendyke.com
Yes
✓ Yes
Mimecast
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-26 19:23:12 UTC · ↺ Refresh
MX Hostnames
- us-smtp-inbound-1.mimecast.com
- us-smtp-inbound-2.mimecast.com
MX Priorities
- us-smtp-inbound-2.mimecast.com: 10
- us-smtp-inbound-1.mimecast.com: 10
A / AAAA Records
- 142.93.242.9 (no PTR)
Mail Server IPs
- 170.10.132.141 ↩ us-smtp-inbound-1.mimecast.com
- 170.10.132.242 ↩ us-smtp-inbound-1.mimecast.com
- 170.10.128.242 ↩ us-smtp-inbound-2.mimecast.com
- 170.10.128.221 ↩ us-smtp-inbound-1.mimecast.com
- 170.10.128.141 ↩ us-smtp-inbound-1.mimecast.com
- 170.10.132.221 ↩ us-smtp-inbound-2.mimecast.com
SOA Record
Raw SOA
ns29.worldnic.com namehost.worldnic.com 126020310 10800 3600 604800 3600
Primary NS (mname)
ns29.worldnic.com
Admin Email (rname)
namehost@worldnic.com
Serial
126020310
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
3600s
Nameservers (NS)
ns30.worldnic.com
ns29.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];
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✗ None detectedNo 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- 6ndmh3hvq3j50mgqs78261ahjj
- MS=ms14920648
- Qg42cFIM5vGhGdD2WA2mNNffuc7YUS0pBaKlAWBh1J4kOf6eW8RHzHN2f36+Ts/Bou/Cg7m//1f98F2PuglBuA==
- ppe-60b054888957b1844791
- SPFv=spf1 include:us._netblocks.mimecast.com ~all
- rbvff89rdsj25tqtj7b556fccv
- smartsheet-site-validation=DY9J5mp_n7ZmfC3fCr0ihbtaCqVL2pPx
- 0ed1fe018aaccee86d2bea469088abb59b26b92138
- adobe-idp-site-verification=d82455091eae47a65452d266608d15086d65756798bcb1c2b22a4f2145be5eeb
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 groendyke.com
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits