Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
carolinaone.com
Yes
✓ Yes
Mimecast
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-17 19:41:01 UTC · ↺ Refresh
MX Hostnames
- usb-smtp-inbound-2.mimecast.com
- usb-smtp-inbound-1.mimecast.com
MX Priorities
- usb-smtp-inbound-2.mimecast.com: 10
- usb-smtp-inbound-1.mimecast.com: 10
A / AAAA Records
- 199.255.86.20 (no PTR)
Mail Server IPs
- 170.10.150.242 ↩ usb-smtp-delivery-2.mimecast.com
- 170.10.152.242 ↩ usb-smtp-delivery-2.mimecast.com
SOA Record
Raw SOA
ns1.deltagroup.com domain\@deltagroup.com 2025051300 7200 3600 604800 3600
Primary NS (mname)
ns1.deltagroup.com
Admin Email (rname)
domain\@deltagroup@com
Serial
2025051300
Refresh
7200s
Retry
3600s
Expire
604800s
Minimum TTL
3600s
Nameservers (NS)
ns2.deltagroup.com
ns1.deltagroup.com
SPF Record
✓ Soft Fail (~all)
v=spf1 ip4:50.31.59.166 mx:carolinaoneplus.com include:includespf.erelocation.net include:_spf.vrmgr.com include:_spf.google.com include:sendgrid.net ~all
📊 DNS lookups: 5/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none; rua=mailto:[email protected]; pct=100; sp=none
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: none
DKIM Selectors
✓ 2 found
google._domainkey
mail._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
4 records- 0ed1fe018a80df3e97b4774720bb51c3
- google-site-verification=ySG8rhxOr1EWqCu1fzmVCM61WBMkADPOtLq9XDpA3Lc
- asv=d490db8261be6d8d3d028a59fa80409a
- SPFv=spf1 ip4:50.31.59.166 mx:carolinaoneplus.com include:includespf.erelocation.net include:_spf.vrmgr.com include:_spf.google.com include:sendgrid.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 carolinaone.com
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits