Live data — DNS records and disposable check were just fetched and saved.
Domain Overview
DNS: ⚡ live
Checker: ⚡ live
gbh.com.do
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-05-21 11:07:01 UTC · ↺ Refresh
MX Hostnames
- gbh-com-do.mail.protection.outlook.com
MX Priorities
No priority data.
A / AAAA Records
- 44.219.179.42
- 44.223.153.50
- 44.220.3.115
Mail Server IPs
No IPs resolved.
SOA Record
No SOA record found.
Nameservers (NS)
ns3-08.azure-dns.org
ns4-08.azure-dns.info
ns1-08.azure-dns.com
ns2-08.azure-dns.net
SPF Record
✓ Strict (-all)
v=spf1 include:servers.mcsv.net include:zoho.com include:transmail.net include:spf.protection.outlook.com -all
📊 DNS lookups: 4/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1;p=quarantine;rua=mailto:[email protected],mailto:[email protected];ruf=mailto:[email protected],mailto:[email protected];aspf=s;fo=1;
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Strict
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected],mailto:[email protected]
DKIM Selectors
✓ 5 found
selector1._domainkey
selector2._domainkey
k1._domainkey
s1._domainkey
s2._domainkey
✓ Public key: 216 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
5 records- 1password-site-verification=4YU3GEIQ2FDLFBZIXZRM6LE6OM
- atlassian-sending-domain-verification=520cef45-4d5e-4ac3-8812-1bdab14c8447
- atlassian-domain-verification=jkoQlcXl50garwjA4iYXXajMD9iCZD2oxaFybvAgoqKGHsQpME7EAjaSQaUudvkk
- SPFv=spf1 include:servers.mcsv.net include:zoho.com include:transmail.net include:spf.protection.outlook.com -all
- apple-domain-verification=jnfbEm4EK0kg8TPj
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 gbh.com.do
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits