Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
astra-bier.de
Yes
✓ Yes
Outlook
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-22 06:24:25 UTC · ↺ Refresh
MX Hostnames
- astrabier-de01c.mail.protection.outlook.com
MX Priorities
- astrabier-de01c.mail.protection.outlook.com: 0
A / AAAA Records
- 104.18.20.53 (no PTR)
- 104.18.21.53 (no PTR)
- 2a01:4f8:d0a:65ee::2
Mail Server IPs
- 52.101.68.36 ↩ mail-db5pr02cu00104.inbound.protection.outlook.com
- 52.101.68.39 ↩ mail-db7pr03cu00607.inbound.protection.outlook.com
- 52.101.73.6 ↩ mail-am6pr04cu00306.inbound.protection.outlook.com
- 52.101.73.8 ↩ mail-am0pr04cu00500.inbound.protection.outlook.com
- 2a01:111:f403:ca09::7 ↩ mail-am9pr04cu00107.inbound.protection.outlook.com
- 2a01:111:f403:ca04::2 ↩ mail-du2pr03cu00102.inbound.protection.outlook.com
- 2a01:111:f403:ca04::1 ↩ mail-db7pr03cu00401.inbound.protection.outlook.com
- 2a01:111:f403:ca04::d ↩ mail-db6pr03cu00105.inbound.protection.outlook.com
SOA Record
Raw SOA
ns01.brandshelter.com tech.brandshelter.com 2025121600 10800 3600 604800 300
Primary NS (mname)
ns01.brandshelter.com
Admin Email (rname)
tech@brandshelter.com
Serial
2025121600
Refresh
10800s
Retry
3600s
Expire
604800s
Minimum TTL
300s
Nameservers (NS)
ns01.brandshelter.com
ns02.brandshelter.net
SPF Record
✓ Strict (-all)
v=spf1 ip4:91.223.85.144 ip4:91.223.85.145 ip4:91.223.85.151 include:spf.protection.outlook.com include:eu._netblocks.mimecast.com -all
📊 DNS lookups: 2/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; pct=100; 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
✓ 2 found
selector1._domainkey
selector2._domainkey
✓ Public key: 216 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
6 records- onetrust-domain-verification=c7030d13a4f54a35a1d1e1979e3119cf
- SPFv=spf1 ip4:91.223.85.144 ip4:91.223.85.145 ip4:91.223.85.151 include:spf.protection.outlook.com include:eu._netblocks.mimecast.com -all
- ca3-1d48fc9cd8984bdda123c43b0bbe466a
- mqyYza7FQIX1Pw+yNSwz059yB3Nncl2Ff9+p7VDnZqSCaLtGzhEXA2zNMFKdMQsvNaUWmeWDM432VdNlU3GMHQ==
- MS=ms19378026
- 0ed1fe018ad3572bd4b57e477fbf5cc2df0b7f39a1
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