Live data — DNS records and disposable check were just fetched and saved.
Domain Overview
DNS: ⚡ live
Checker: ⚡ live
zimmermann-heitmann.de
Yes
✓ Yes
Unknown
No
No
⚠ Yes
No
No
Checked via [email protected]
· 2026-06-03 21:40:20 UTC · ↺ Refresh
MX Hostnames
- mx03.secure-mailgate.com
- mx04.secure-mailgate.com
MX Priorities
- mx03.secure-mailgate.com: 10
- mx04.secure-mailgate.com: 10
A / AAAA Records
- 157.90.71.21 ↩ zimmermann-heitmann.de
Mail Server IPs
- 46.243.88.176 ↩ node04.secure-mailgate.com
- 46.243.88.174 ↩ node03.secure-mailgate.com
- 46.243.88.177 ↩ node04.secure-mailgate.com
- 46.243.88.175 ↩ node03.secure-mailgate.com
SOA Record
Raw SOA
ns1.dodns.net hostmaster.zimmermann-heitmann.de 2024042913 86400 7200 3600000 172800
Primary NS (mname)
ns1.dodns.net
Admin Email (rname)
hostmaster@zimmermann-heitmann.de
Serial
2024042913
Refresh
86400s
Retry
7200s
Expire
3600000s
Minimum TTL
172800s
Nameservers (NS)
ns1a.dodns.net
ns2a.dodns.net
SPF Record
✓ Strict (-all)
v=spf1 a include:hex2013.com include:spf.protection.outlook.com include:servers.mcsv.net -all
📊 DNS lookups: 4/10
✓ Hard fail (-all) — strict 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
✗ 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
3 records- google-site-verification=-kUPVxCc55eidGB0qCnk0Yc2vkjBLrjzHRoNkmapnbQ
- SPFv=spf1 a include:hex2013.com include:spf.protection.outlook.com include:servers.mcsv.net -all
- MS=ms14136103
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