Domain Overview
DNS: ✓ 1d ago
Checker: ✓ 1d ago
studon.com
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-05-19 17:07:23 UTC · ↺ Refresh
MX Hostnames
- studon-com.mail.protection.outlook.com
MX Priorities
- studon-com.mail.protection.outlook.com: 0
A / AAAA Records
- 45.40.148.147 ↩ 147.148.40.45.host.secureserver.net
Mail Server IPs
- 52.101.190.1 ↩ mail-yt3pr01cu00701.inbound.protection.outlook.com
- 52.101.190.3 ↩ mail-yt6pr01cu00103.inbound.protection.outlook.com
- 52.101.190.0 ↩ mail-yt5pr01cu00100.inbound.protection.outlook.com
- 52.101.190.2 ↩ mail-yt3pr01cu00602.inbound.protection.outlook.com
- 2a01:111:f403:c944::1 ↩ mail-yqzpr01cu01001.inbound.protection.outlook.com
- 2a01:111:f403:c942::1 ↩ mail-yt3pr01cu00701.inbound.protection.outlook.com
- 2a01:111:f403:c942::2 ↩ mail-yt3pr01cu00602.inbound.protection.outlook.com
- 2a01:111:f403:c944:: ↩ mail-yqzpr01cu00900.inbound.protection.outlook.com
SOA Record
Raw SOA
ns1-03.azure-dns.com hostmaster 28 900 600 86400 3600
Primary NS (mname)
ns1-03.azure-dns.com
Admin Email (rname)
hostmaster
Serial
28
Refresh
900s
Retry
600s
Expire
86400s
Minimum TTL
3600s
Nameservers (NS)
ns4-03.azure-dns.info
ns1-03.azure-dns.com
ns2-03.azure-dns.net
ns3-03.azure-dns.org
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com -all
📊 DNS lookups: 1/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
DKIM Selectors
✓ 2 found
selector1._domainkey
selector2._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- MS=ms63053163
- SPFv=spf1 include:spf.protection.outlook.com -all
- x3MbvEY3
- m4lo5g4ekfIK/B7h4FRYlNC98X1Yq47mZirLYdPBz+QQekTFj+Ft2JW42x/Yrpzinn1gxXqh+CGE5HSUA5takw==
- gbdo9mmmhdgssqgtn7blh2h50c
- MS=ms67655345
- YXp1cmVfY29tbW9u
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