Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
b1-bremen.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-22 01:34:51 UTC · ↺ Refresh
MX Hostnames
- mx1.agenturserver.de
- mx4.agenturserver.de
- mx2.agenturserver.de
- mx3.agenturserver.de
MX Priorities
- mx3.agenturserver.de: 20
- mx1.agenturserver.de: 10
- mx4.agenturserver.de: 50
- mx2.agenturserver.de: 10
A / AAAA Records
No A/AAAA records found.
Mail Server IPs
- 185.15.192.58 ↩ mx3.agenturserver.de
- 185.15.192.56 ↩ mx1.agenturserver.de
- 185.15.192.59 ↩ mx4.agenturserver.de
- 185.15.192.57 ↩ mx2.agenturserver.de
SOA Record
Raw SOA
ns1.b1-bremen.de hostmaster.b1-bremen.de 9 86400 7200 3600000 172800
Primary NS (mname)
ns1.b1-bremen.de
Admin Email (rname)
hostmaster@b1-bremen.de
Serial
9
Refresh
86400s
Retry
7200s
Expire
3600000s
Minimum TTL
172800s
Nameservers (NS)
ns1a.dodns.net
ns2a.dodns.net
SPF Record
✓ Strict (-all)
v=spf1 a mx include:agenturserver.de -all
📊 DNS lookups: 3/10
✓ Hard fail (-all) — strict enforcement
DMARC Record
✗ MissingNo DMARC record — emails cannot be rejected on auth failure.
DKIM Selectors
✗ None detectedNo DKIM records found for common selectors — your provider may use a custom selector name.
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
1 record- SPFv=spf1 a mx include:agenturserver.de -all
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