Domain Overview
DNS: ✓ 2mo ago
Checker: ✓ 2mo ago
deltabau.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-03-27 04:10:26 UTC · ↺ Refresh
MX Hostnames
- mailin.deltabau.de
MX Priorities
- mailin.deltabau.de: 10
A / AAAA Records
- 83.246.45.80 (no PTR)
- 2a02:790:5:100::2 (no PTR)
Mail Server IPs
- 217.7.242.166 ↩ remote.deltabau.de
SOA Record
Raw SOA
dns1.vision-connect.de dnsmaster.visionconnect.de 2026021900 43200 3600 604800 3600
Primary NS (mname)
dns1.vision-connect.de
Admin Email (rname)
dnsmaster@visionconnect.de
Serial
2026021900
Refresh
43200s
Retry
3600s
Expire
604800s
Minimum TTL
3600s
Nameservers (NS)
frankfurt.nic.xlink.net
dns2.vision-connect.de
dns1.vision-connect.de
SPF Record
✓ Soft Fail (~all)
v=spf1 a mx include:_spf.vision-connect.de include:_spf.aareon.com ~all
📊 DNS lookups: 4/10
~ Soft fail (~all) — moderate enforcement
DMARC Record
~ Quarantine
v=DMARC1; p=quarantine; rua=mailto:[email protected]; ruf=mailto:[email protected]
~ Quarantine — good protection (failing mail goes to spam)
📋 SPF alignment: Relaxed
· DKIM alignment: Relaxed
📧 Reports → mailto:[email protected]
DKIM Selectors
✓ 1 found
s1._domainkey
✓ Public key: 392 chars (valid)
✓ DKIM properly configured for selector: s1
Checked: google, selector1/2, default, mail, dkim, k1, s1/2, zoho, sendgrid, mxvault, amazonses
All TXT Records
2 records- SPFv=spf1 a mx include:_spf.vision-connect.de include:_spf.aareon.com ~all
- DMARCv=DMARC1; p=none
Full email verification for deltabau.de
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