Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
studimed.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-24 14:31:40 UTC · ↺ Refresh
MX Hostnames
- studimed-de.mail.protection.outlook.com
MX Priorities
- studimed-de.mail.protection.outlook.com: 5
A / AAAA Records
- 172.67.157.25 (no PTR)
- 104.21.48.251 (no PTR)
- 2606:4700:3032::ac43:9d19
- 2606:4700:3034::6815:30fb
Mail Server IPs
- 52.101.170.1 ↩ mail-fr4p281cu03101.inbound.protection.outlook.com
- 52.101.168.0 ↩ mail-beup281cu00100.inbound.protection.outlook.com
- 52.101.170.0 ↩ mail-fr5p281cu00500.inbound.protection.outlook.com
- 52.101.170.2 ↩ mail-fr6p281cu00202.inbound.protection.outlook.com
- 2a01:111:f403:ca2d:: ↩ mail-fr5p281cu00500.inbound.protection.outlook.com
- 2a01:111:f403:ca27:: ↩ mail-beup281cu00100.inbound.protection.outlook.com
- 2a01:111:f403:ca2d::2 ↩ mail-fr6p281cu00202.inbound.protection.outlook.com
- 2a01:111:f403:ca2d::1 ↩ mail-fr4p281cu03101.inbound.protection.outlook.com
SOA Record
Raw SOA
javon.ns.cloudflare.com dns.cloudflare.com 2399399994 10000 2400 604800 1800
Primary NS (mname)
javon.ns.cloudflare.com
Admin Email (rname)
dns@cloudflare.com
Serial
2399399994
Refresh
10000s
Retry
2400s
Expire
604800s
Minimum TTL
1800s
Nameservers (NS)
javon.ns.cloudflare.com
pearl.ns.cloudflare.com
SPF Record
✓ Soft Fail (~all)
v=spf1 ip4:81.169.146.161 include:_spf.strato.com a:mailout03.cloud-core.de a:mailout04.cloud-core.de include:spf.protection.outlook.com include:spf.emailsys.net ~all
📊 DNS lookups: 5/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected]; ruf=mailto:[email protected]; fo=1
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 3 found
selector1._domainkey
selector2._domainkey
mail._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
1 record- SPFv=spf1 ip4:81.169.146.161 include:_spf.strato.com a:mailout03.cloud-core.de a:mailout04.cloud-core.de include:spf.protection.outlook.com include:spf.emailsys.net ~all
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