Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
tutmann.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-27 16:54:15 UTC · ↺ Refresh
MX Hostnames
- tutmann-de.mail.protection.outlook.com
MX Priorities
- tutmann-de.mail.protection.outlook.com: 0
A / AAAA Records
- 157.245.26.197 (no PTR)
Mail Server IPs
- 52.101.170.1 ↩ mail-fr4p281cu03101.inbound.protection.outlook.com
- 52.101.170.2 ↩ mail-fr6p281cu00202.inbound.protection.outlook.com
- 52.101.168.0 ↩ mail-beup281cu00100.inbound.protection.outlook.com
- 52.101.170.0 ↩ mail-fr5p281cu00500.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::1 ↩ mail-fr4p281cu03101.inbound.protection.outlook.com
- 2a01:111:f403:ca2d::2 ↩ mail-fr6p281cu00202.inbound.protection.outlook.com
SOA Record
Raw SOA
ns2.knipp.de dnsmaster.irondns.net 9 10800 3000 2419200 900
Primary NS (mname)
ns2.knipp.de
Admin Email (rname)
dnsmaster@irondns.net
Serial
9
Refresh
10800s
Retry
3000s
Expire
2419200s
Minimum TTL
900s
Nameservers (NS)
ns17.knipp.net
ns3.knipp.de
ns2.knipp.de
SPF Record
✓ Strict (-all)
v=spf1 include:servers.mcsv.net include:spf.protection.outlook.com -all
📊 DNS lookups: 2/10
✓ 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
2 records- MS=ms35634418
- SPFv=spf1 include:servers.mcsv.net include:spf.protection.outlook.com -all
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