Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
groundtruth.com
Yes
✓ Yes
Mimecast
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-17 23:31:49 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
- 141.193.213.10 (no PTR)
- 141.193.213.11 (no PTR)
Mail Server IPs
- 170.10.128.141 ↩ us-smtp-inbound-1.mimecast.com
- 170.10.132.221 ↩ us-smtp-inbound-2.mimecast.com
- 170.10.132.242 ↩ us-smtp-inbound-2.mimecast.com
- 170.10.128.242 ↩ us-smtp-inbound-1.mimecast.com
- 170.10.128.221 ↩ us-smtp-inbound-1.mimecast.com
- 170.10.132.141 ↩ us-smtp-inbound-2.mimecast.com
SOA Record
Raw SOA
ns-1462.awsdns-54.org awsdns-hostmaster.amazon.com 1 7200 900 1209600 86400
Primary NS (mname)
ns-1462.awsdns-54.org
Admin Email (rname)
awsdns-hostmaster@amazon.com
Serial
1
Refresh
7200s
Retry
900s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
ns-1929.awsdns-49.co.uk
ns-64.awsdns-08.com
ns-988.awsdns-59.net
ns-1462.awsdns-54.org
SPF Record
✓ Soft Fail (~all)
v=spf1 include:39714994.spf08.hubspotemail.net include:spf.protection.outlook.com include:us._netblocks.mimecast.com include:spf_s1.oraclecloud.com include:_spf.salesforce.com include:_spf.psm.knowbe4.com include:servers.mcsv.net include:mail.zendesk.com ip4:52.36.236.53 ip4:52.201.103.157 ~all
📊 DNS lookups: 8/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected],mailto:[email protected]; ruf=mailto:[email protected]; fo=1;
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected],mailto:[email protected]
DKIM Selectors
✓ 3 found
google._domainkey
s1._domainkey
s2._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: google
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
17 records- pandadoc-domain-verification=MVNqLp83Efm4R8bctymTzD
- anthropic-domain-verification-x0gn36=9Gzqj6WTY3knDzEcAuPLRS18U
- google-site-verification=ieIExS9b9Idp6mAS71qyk_StMcsT5hpTlfjY6EbopVM
- openai-domain-verification=dv-aPlultbbUXei0XOVoHJf4Xrf
- apple-domain-verification=HsO0hue4O6shfUAL
- cursor-domain-verification-y1ahmc=goPJx6IkaPUJvuH1eG3w519bc
- SPFv=spf1 include:39714994.spf08.hubspotemail.net include:spf.protection.outlook.com include:us._netblocks.mimecast.com include:spf_s1.oraclecloud.com include:_spf.salesforce.com include:_spf.psm.knowbe4.com include:servers.mcsv.net include:mail.zendesk.com ip4:52.36.236.53 ip4:52.201.103.157 ~all
- docusign=31e29314-0eef-4128-8fbd-453e31658467
- MS=ms43903084
- google-site-verification=967G0Lxc5jXY28E1Xtellrvn2HUEu9yvdwJ1jMILkUY
- hubspot-domain-verification=YThmM2UzZTQtNGMxZS00N2ZmLTg3MDktZGU3ZmNlMzk0MDU2
- ZOOM_verify_nbR6jrymQ5GUGcC9HJagHg
- zoho-verification=zb20496033.zmverify.zoho.in
- pv4xvzs6n6gd49yhc69y1f82l034qhfj
- atlassian-domain-verification=9wLv6gFAsC4IYw0AMiXhOuCP6937UEpwBItuF78nhvFZmaP6m7OtzGE79GXC3dqt
- atlassian-sending-domain-verification=e54d52a4-13c9-4c80-98e3-79c202af51e5
- jamf-site-verification=178KFO63S7l7GeNQAQMQew
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 groundtruth.com
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits