Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
nxb.com.pk
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-22 19:57:15 UTC · ↺ Refresh
MX Hostnames
- mx01.nxb.com.pk
MX Priorities
- mx01.nxb.com.pk: 10
A / AAAA Records
- 188.40.189.21 ↩ mx01.myvteams.com
Mail Server IPs
- 188.40.189.21 ↩ mx01.myvteams.com
SOA Record
Raw SOA
ns1.nxnoc.com alerts.nxvt.com 2026021601 3600 7200 1209600 86400
Primary NS (mname)
ns1.nxnoc.com
Admin Email (rname)
alerts@nxvt.com
Serial
2026021601
Refresh
3600s
Retry
7200s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
ns2.nxnoc.com
ns1.nxnoc.com
SPF Record
✓ Soft Fail (~all)
v=spf1 a mx ip4:188.40.189.21 include:_spf.google.com include:servers.mcsv.net ~all
📊 DNS lookups: 4/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
~ Quarantine
v=DMARC1;p=quarantine;sp=none;adkim=r;aspf=r;pct=100;fo=0;rf=afrf;ri=86400;rua=mailto:[email protected]
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: none
DKIM Selectors
✓ 2 found
default._domainkey
k1._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
3 records- SPFv=spf1 a mx ip4:188.40.189.21 include:_spf.google.com include:servers.mcsv.net ~all
- google-site-verification=X8WyK_BUdDM1dEMTGkMqpsrMZvHx5pCQeZh8_t3x7G0
- atlassian-domain-verification=NRaKOSDW3kgFn6gfppa80U9oaByDbPhGfMYl5sFSz3EZgzMG2vTmPeyuOmSrnN4W
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 nxb.com.pk
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits