Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
aucubin.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-04-03 11:50:03 UTC · ↺ Refresh
MX Hostnames
- hosted.mailcow.de
MX Priorities
- hosted.mailcow.de: 10
A / AAAA Records
- 128.140.115.172 ↩ external.aucubin.de
- 2a01:4f8:c012:3f01::1 ↩ external.aucubin.de
Mail Server IPs
- 5.1.76.202 ↩ hosted.mailcow.de
- 2a00:f820:417::202 ↩ hosted.mailcow.de
SOA Record
Raw SOA
ns-1524.awsdns-62.org awsdns-hostmaster.amazon.com 1 7200 900 1209600 86400
Primary NS (mname)
ns-1524.awsdns-62.org
Admin Email (rname)
awsdns-hostmaster@amazon.com
Serial
1
Refresh
7200s
Retry
900s
Expire
1209600s
Minimum TTL
86400s
Nameservers (NS)
ns-1524.awsdns-62.org
ns-1698.awsdns-20.co.uk
ns-198.awsdns-24.com
ns-531.awsdns-02.net
SPF Record
✓ Soft Fail (~all)
v=spf1 include:spf.mailcow.de ~all
📊 DNS lookups: 1/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
✗ p=none
v=DMARC1; p=none
⚠ p=none — monitoring only, no enforcement
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
⚠ No aggregate reports (rua= not set)
DKIM Selectors
✓ 1 found
default._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: default
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
1 record- SPFv=spf1 include:spf.mailcow.de ~all
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