Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
f-tronic.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-26 05:36:17 UTC · ↺ Refresh
MX Hostnames
- ftronic-de0c.mail.protection.outlook.com
MX Priorities
- ftronic-de0c.mail.protection.outlook.com: 10
A / AAAA Records
- 136.243.84.72 ↩ k51g57.meinserver.io
Mail Server IPs
- 52.101.73.153 ↩ mail-as8pr05cu00401.inbound.protection.outlook.com
- 52.101.68.12 ↩ mail-db9pr02cu00204.inbound.protection.outlook.com
- 52.101.68.8 ↩ mail-du0pr03cu00100.inbound.protection.outlook.com
- 52.101.68.0 ↩ mail-db3pr0202cu00100.inbound.protection.outlook.com
- 2a01:111:f403:ca09::b ↩ mail-am7pr05cu00103.inbound.protection.outlook.com
- 2a01:111:f403:ca04::b ↩ mail-dbbpr03cu00103.inbound.protection.outlook.com
- 2a01:111:f403:ca09::3 ↩ mail-am6pr04cu00303.inbound.protection.outlook.com
- 2a01:111:f403:ca04::8 ↩ mail-db5pr02cu00100.inbound.protection.outlook.com
SOA Record
Raw SOA
ns01.kraemer-it.cloud rechnung.f-tronic.de 2026010701 10800 3600 604800 38400
Primary NS (mname)
ns01.kraemer-it.cloud
Admin Email (rname)
rechnung@f-tronic.de
Serial
2026010701
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
38400s
Nameservers (NS)
ns02.kraemer-it.cloud
ns01.kraemer-it.cloud
SPF Record
✓ Strict (-all)
v=spf1 include:spf.protection.outlook.com include:spfa.kraemer-it.de include:spf.emailsignatures365.com -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ p=none
v=DMARC1;p=none;adkim=r;aspf=r;
⚠ 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: 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
3 records- SPFv=spf1 include:spf.protection.outlook.com include:spfa.kraemer-it.de include:spf.emailsignatures365.com -all
- MS=ms42504150
- MS=233337989115B09166BB2C73D89B565CF622F74B
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