Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
tuckahoe.net
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-18 06:20:09 UTC · ↺ Refresh
MX Hostnames
- antispam.ncisystems.com
MX Priorities
- antispam.ncisystems.com: 0
A / AAAA Records
- 35.197.42.115 ↩ 115.42.197.35.bc.googleusercontent.com
Mail Server IPs
- 216.55.103.246 ↩ antispam.ncisystems.com
SOA Record
Raw SOA
ns2.ncisystems.com dns.ncisystems.com 2026030900 1200 900 1209600 14400
Primary NS (mname)
ns2.ncisystems.com
Admin Email (rname)
dns@ncisystems.com
Serial
2026030900
Refresh
1200s
Retry
900s
Expire
1209600s
Minimum TTL
14400s
Nameservers (NS)
ns2.ncisystems.com
ns3.ncisystems.com
ns1.ncisystems.com
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com include:_spf.smtp.com a:antispam.ncisystems.com -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none;
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: selector1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
3 records- MS=ms74525013
- google-site-verification=ndUXbWyBSAH9EcCGHx7hY7WUmRnT58Z7DDZFPOz9HZ8
- SPFv=spf1 include:spf.protection.outlook.com include:_spf.smtp.com a:antispam.ncisystems.com -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 tuckahoe.net
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits