gosmallbiz.com

Valid Email Server
Domain Lookup › gosmallbiz.com

Domain Overview

DNS: ✓ 2mo ago Checker: ✓ 2mo ago
gosmallbiz.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No

Checked via [email protected] · 2026-03-22 17:56:44 UTC · ↺ Refresh

Add email validation to your forms — free

Add our free script to block 10,000+ disposable domains + perform other checks. No signup, unlimited checks.

MX validation Disposable detection Role accounts
Add to your signup form
<script src="https://check.verifyswift.com/"></script>
One line · No registration · See full docs & demo → · Customize →

MX Hostnames

  • gosmallbiz-com.mail.protection.outlook.com

MX Priorities

  • gosmallbiz-com.mail.protection.outlook.com: 10

A / AAAA Records

  • 23.185.0.2 (no PTR)
  • 2620:12a:8000::2 (no PTR)
  • 2620:12a:8001::2

Mail Server IPs

  • 52.101.10.16 ↩ mail-bn6pr21cu00500.inbound.protection.outlook.com
  • 52.101.9.14 ↩ mail-bl0pr03cu00206.inbound.protection.outlook.com
  • 52.101.10.18 ↩ mail-bn8pr05cu00302.inbound.protection.outlook.com
  • 52.101.11.2 ↩ mail-sn1pr03cu00102.inbound.protection.outlook.com
  • 2a01:111:f403:f90d:: ↩ mail-sn1pr0501cu00200.inbound.protection.outlook.com
  • 2a01:111:f403:f805::1 ↩ mail-co1pr03cu00301.inbound.protection.outlook.com
  • 2a01:111:f403:c902::6 ↩ mail-sj0pr21cu00106.inbound.protection.outlook.com
  • 2a01:111:f403:c922::1 ↩ mail-bl0pr05cu00501.inbound.protection.outlook.com

SOA Record

Raw SOA ns63.domaincontrol.com dns.jomax.net 2026012502 28800 7200 604800 3600
Primary NS (mname)
ns63.domaincontrol.com
Admin Email (rname)
dns@jomax.net
Serial
2026012502
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
3600s

Nameservers (NS)

ns64.domaincontrol.com
ns63.domaincontrol.com

SPF Record

✓ Strict (-all)
v=spf1 ip4:52.247.123.42 include:spf.protection.outlook.com include:tarkenton-websites.trafficmanager.net include:helpscoutemail.com -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement

DMARC Record

✗ p=none
v=DMARC1; p=none; rua=mailto:[email protected]; ruf=mailto:[email protected];
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed · DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]

DKIM Selectors

✓ 4 found
selector1._domainkey
selector2._domainkey
s1._domainkey
s2._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

7 records
  • google-site-verification=mJCtl_z2GQ4TixFjdQ1RjuUtiv1sBOzmEUPvYSuF0XI
  • stripe-verification=882dc19adeae3cd49384c340c2fae00c5bf26f81864ac80a7a8ff5d2a57b740c
  • SPFv=spf1 ip4:52.247.123.42 include:spf.protection.outlook.com include:tarkenton-websites.trafficmanager.net include:helpscoutemail.com -all
  • globalsign-domain-verification=AfN_ffmd1GbzdN51AOtZPtgTPgPXfZ9fEy4Y3KoL8A
  • google-site-verification=LDf7ekn1V3L1ZseaH4A0_NPKlXC33hnAtAKLCPFYi6A
  • _globalsign-domain-verification=VGgLpKTZyA0Xf_fYc_t58GfKP31E16QWomwOaRZEiB
  • v=verifydomain MS=7881617
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 gosmallbiz.com

SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.

No credit card required
Get 1,000 Free Credits