Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
sifin.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Did you mean: [email protected]
Checked via [email protected]
· 2026-03-22 06:19:54 UTC · ↺ Refresh
MX Hostnames
- sifin-de.mail.protection.outlook.com
MX Priorities
- sifin-de.mail.protection.outlook.com: 0
A / AAAA Records
- 89.22.101.248 ↩ vm25417.alfahosting-vps.de
Mail Server IPs
- 52.101.73.11 ↩ mail-am1pr04cu00103.inbound.protection.outlook.com
- 52.101.73.153 ↩ mail-as8pr05cu00401.inbound.protection.outlook.com
- 52.101.73.4 ↩ mail-am0pr83cu00404.inbound.protection.outlook.com
- 52.101.68.10 ↩ mail-dbbpr03cu00102.inbound.protection.outlook.com
- 2a01:111:f403:ca09::f ↩ mail-am7pr05cu00307.inbound.protection.outlook.com
- 2a01:111:f403:ca04::2 ↩ mail-du2pr03cu00102.inbound.protection.outlook.com
- 2a01:111:f403:ca09::c ↩ mail-as8pr05cu00304.inbound.protection.outlook.com
- 2a01:111:f403:ca09::6 ↩ mail-am4pr0401cu00106.inbound.protection.outlook.com
SOA Record
Raw SOA
ns1.truedns.de hostmaster.alfahosting.de 2026020375 28800 7200 604800 10800
Primary NS (mname)
ns1.truedns.de
Admin Email (rname)
hostmaster@alfahosting.de
Serial
2026020375
Refresh
28800s
Retry
7200s
Expire
604800s
Minimum TTL
10800s
Nameservers (NS)
ns1.truedns.de
ns2.truedns.de
ns3.truedns.de
SPF Record
✓ Strict (-all)
v=spf1 +a +mx ip4:46.189.45.180 include:spf.protection.outlook.com include:mail01.sifin.de include:_spf.salesforce.com -all
📊 DNS lookups: 5/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; pct=100; adkim=s; aspf=s
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Strict
· DKIM alignment: Strict
⚠ 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- brevo-code:79ff7a33c4bc474c76144598090d7147
- SPFv=spf1 +a +mx ip4:46.189.45.180 include:spf.protection.outlook.com include:mail01.sifin.de include:_spf.salesforce.com -all
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