Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
ioausa.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-19 05:07:49 UTC · ↺ Refresh
MX Hostnames
- ioausa-com.mail.protection.outlook.com
MX Priorities
- ioausa-com.mail.protection.outlook.com: 0
A / AAAA Records
- 13.107.213.40 (no PTR)
- 13.107.246.40 (no PTR)
Mail Server IPs
- 52.101.41.4 ↩ mail-sj2pr05cu00204.inbound.protection.outlook.com
- 52.101.40.1 ↩ mail-cy4pr03cu00101.inbound.protection.outlook.com
- 52.101.194.3 ↩ mail-ch1pr04cu00103.inbound.protection.outlook.com
- 52.101.8.51 ↩ mail-dm1pr04cu00203.inbound.protection.outlook.com
- 2a01:111:f403:f804::1 ↩ mail-co1pr05cu00301.inbound.protection.outlook.com
- 2a01:111:f403:c91d::b ↩ mail-mw2pr02cu00603.inbound.protection.outlook.com
- 2a01:111:f403:c802:: ↩ mail-cy4pr03cu00100.inbound.protection.outlook.com
- 2a01:111:f403:f913::1 ↩ mail-cy5pr05cu00101.inbound.protection.outlook.com
SOA Record
Raw SOA
ns1-01.azure-dns.com azuredns-hostmaster.microsoft.com 1 3600 300 2419200 300
Primary NS (mname)
ns1-01.azure-dns.com
Admin Email (rname)
azuredns-hostmaster@microsoft.com
Serial
1
Refresh
3600s
Retry
300s
Expire
2419200s
Minimum TTL
300s
Nameservers (NS)
ns1-01.azure-dns.com
ns2-01.azure-dns.net
ns3-01.azure-dns.org
ns4-01.azure-dns.info
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com include:%{i}._ip.%{h}._ehlo.%{d}._spf.vali.email -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✓ Reject
v=DMARC1; p=reject; sp=reject; rua=mailto:[email protected]
✓ Reject — strongest protection
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
↳ Subdomain policy: reject
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
14 records- Foxit-domain-verification=7b1e327649a7958ea400c04394ec80c6
- ms-domain-verification=8429a8b7-3e9f-469b-ad6d-d75c04776ac1
- smartsheet-site-validation=eA3v1wdaugvu0Jb9i7AHLkO2TlFm1DcU
- twilio-domain-verification=84c6dd713d3845abb13498109ae9350e
- onetrust-domain-verification=6c9ec892a3af49069019d6289fbfe89b
- globalsign-domain-verification=fd688714346b2e5909a12edd229a4548
- 6936241F775B40C119EC431A40E62FD39DE69729090A58D247323E9411BF6732
- google-site-verification=7BSWasTwT_JufyEddpPlwjAmh9TCLOIaZ1NNlA8g-nk
- atlassian-domain-verification=ltL9DUhJAm2tfn8N9yrEdjPySoxUKunM+7X9qisRcDfI7AF3ByegXuiS0BSzmeTj
- SPFv=spf1 include:spf.protection.outlook.com include:%{i}._ip.%{h}._ehlo.%{d}._spf.vali.email -all
- aoo1kc9sfbufa0d0mih7kpduhs
- apple-domain-verification=bhSvZmQFdYH6jxpp
- 731a0be8393eb4ad36aaa80b48345f2bfd025580edf40e1aec
- nitro-verification-code=MTM3MjAwNzk4MzgzMjc0NDEwMA==
Full email verification for ioausa.com
Run SMTP check, SPF/DKIM/DMARC and catch-all detection.
SPF / DKIM / DMARC Get 1,000 Free Credits