Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
oniz.com.br
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-27 08:28:22 UTC · ↺ Refresh
MX Hostnames
- oniz-com-br.mail.eo.outlook.com
MX Priorities
- oniz-com-br.mail.eo.outlook.com: 0
A / AAAA Records
- 137.131.138.27 (no PTR)
Mail Server IPs
- 52.101.8.46 ↩ mail-dm6pr05cu00406.inbound.protection.outlook.com
- 52.101.10.12 ↩ mail-bn1pr21cu00204.inbound.protection.outlook.com
- 52.101.194.12 ↩ mail-ch0pr04cu00504.inbound.protection.outlook.com
- 52.101.10.1 ↩ mail-bn6pr02cu00301.inbound.protection.outlook.com
- 2a01:111:f403:c946::6 ↩ mail-ch5pr02cu00406.inbound.protection.outlook.com
- 2a01:111:f403:c802:: ↩ mail-cy4pr03cu00100.inbound.protection.outlook.com
- 2a01:111:f403:f90a:: ↩ mail-bn6pr02cu00300.inbound.protection.outlook.com
- 2a01:111:f403:f90c:: ↩ mail-sn1pr03cu00100.inbound.protection.outlook.com
SOA Record
Raw SOA
ns1.aziondns.net admin.azion.com 2026032708 43200 7200 1209600 3600
Primary NS (mname)
ns1.aziondns.net
Admin Email (rname)
admin@azion.com
Serial
2026032708
Refresh
43200s
Retry
7200s
Expire
1209600s
Minimum TTL
3600s
Nameservers (NS)
ns2.aziondns.com
ns1.aziondns.net
ns3.aziondns.org
SPF Record
✓ Strict (-all)
v=spf1 ip4:137.131.206.161 ip4:164.152.33.137 ip4:200.174.167.2 ip4:181.191.17.42 ip4:189.2.225.178 include:spf.protection.outlook.com -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ p=none
v=DMARC1
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._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- SPFv=spf1 ip4:137.131.206.161 ip4:164.152.33.137 ip4:200.174.167.2 ip4:181.191.17.42 ip4:189.2.225.178 include:spf.protection.outlook.com -all
- mh9tcrbj2ds0fn4niqe019d8th
- fu0mmknd42pr5prvet13fia46k
- _globalsign-domain-verification=fPBkpre8O45zNXX16tz5I7jJ6LwPK_7u88EJ_W_F12
- MS=F514F13D3D879E760505D8F7E457D6A20A2560C5
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 oniz.com.br
SMTP handshake, catch-all detection, custom validation rules, actual deliverability tests, and more.
No credit card required
Get 1,000 Free Credits