Domain Overview
DNS: ✓ 20d ago
Checker: ✓ 20d ago
nsbasic.com
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-05-20 21:55:27 UTC · ↺ Refresh
MX Hostnames
- in1-smtp.messagingengine.com
- in2-smtp.messagingengine.com
MX Priorities
- in1-smtp.messagingengine.com: 10
- in2-smtp.messagingengine.com: 20
A / AAAA Records
- 216.92.217.146
Mail Server IPs
- 103.168.172.221 ↩ phl-mx-06.messagingengine.com
- 103.168.172.222 ↩ phl-mx-07.messagingengine.com
- 103.168.172.223 ↩ phl-mx-08.messagingengine.com
- 103.168.172.216 ↩ phl-mx-01.messagingengine.com
- 103.168.172.217 ↩ phl-mx-02.messagingengine.com
- 103.168.172.218 ↩ phl-mx-03.messagingengine.com
- 103.168.172.219 ↩ phl-mx-04.messagingengine.com
- 103.168.172.220 ↩ phl-mx-05.messagingengine.com
- 202.12.124.216 ↩ stl-mx-01.messagingengine.com
- 202.12.124.217 ↩ stl-mx-02.messagingengine.com
- 202.12.124.218
- 202.12.124.219
SOA Record
Raw SOA
dns.pair.com root.pair.com 2025101714 3600 300 604800 3600
Primary NS (mname)
dns.pair.com
Admin Email (rname)
root@pair.com
Serial
2025101714
Refresh
3600s
Retry
300s
Expire
604800s
Minimum TTL
3600s
Nameservers (NS)
dns.pair.com
ns7.ns0.com
SPF Record
✓ Strict (-all)
v=spf1 include:spf.messagingengine.com include:amazonses.com include:spf.mandrillapp.com include:sparkpostmail.com include:spf.discoursehosting.com -all
📊 DNS lookups: 5/10
✓ 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
✗ 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
3 records- SPFv=spf1 include:spf.messagingengine.com include:amazonses.com include:spf.mandrillapp.com include:sparkpostmail.com include:spf.discoursehosting.com -all
- MS=ms51486449
- google-site-verification=EMfA6qRTHjC0Ty-woqLQuLL5W3C2zpiM63WhMhxc7Xo
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 · Customize →
See demo & docs
Deep verification
Full email verification for nsbasic.com
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits