Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
promise.mx
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-22 03:37:13 UTC · ↺ Refresh
MX Hostnames
- promise.mx
MX Priorities
- promise.mx: 0
A / AAAA Records
- 65.99.252.202 ↩ svgr339.serverneubox.com.mx
Mail Server IPs
- 65.99.252.202 ↩ svgr339.serverneubox.com.mx
SOA Record
Raw SOA
ns144.neubox.net jordymp.gmail.com 2026012403 3600 1800 1209600 86400
Primary NS (mname)
ns144.neubox.net
Admin Email (rname)
jordymp@gmail.com
Serial
2026012403
Refresh
3600s
Retry
1800s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
ns144.neubox.net
ns245.neubox.net
ns143.neubox.net
SPF Record
✓ Soft Fail (~all)
v=spf1 ip4:65.99.252.202 include:relay.mailchannels.net include:smtp.relay.serverneubox.com.mx ip4:174.136.52.230 ip4:65.99.252.113 ip4:198.59.144.27 ip4:65.99.225.148 ip4:147.124.221.154 ip4:147.124.221.154 +a +mx ~all
📊 DNS lookups: 5/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✗ MissingNo DMARC record — emails cannot be rejected on auth failure.
DKIM Selectors
✓ 1 found
default._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: default
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
2 records- SPFv=spf1 ip4:65.99.252.202 include:relay.mailchannels.net include:smtp.relay.serverneubox.com.mx ip4:174.136.52.230 ip4:65.99.252.113 ip4:198.59.144.27 ip4:65.99.225.148 ip4:147.124.221.154 ip4:147.124.221.154 +a +mx ~all
- MS=ms83727819
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 promise.mx
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits