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Email-Blacklist-Überprüfung
Erstellen Sie genaue DNSBL-Lookups für die Mailserver-IP mit ausführbaren dig- und nslookup-Befehlen, Return-Code-Bedeutungen und Delisting-Links.
🔒 Dieses Tool läuft vollständig in Ihrem Browser. Ihre Dateien werden niemals an einen Server hochgeladen.
The IP that actually sends your mail, not your website's. Check a bounce message, or your SPF record.
Run these
An answer means listed. NXDOMAIN — "no such name" — means not listed, which is the result you want.
The lists worth checking
| List | What it lists | Codes | Delisting |
|---|
Being on a list is a symptom. Delisting without fixing the cause gets you relisted within days, so the order of work is: find what sent the mail, stop it, then request removal. Common causes are a compromised mailbox, a web form with no rate limit, a misconfigured relay, or a shared IP where somebody else on the same host is the problem.
How Email-Blacklist-Überprüfung works
- Open Email-Blacklist-Überprüfung and review the example state before entering your own values.
- Enter or select the information needed for Email-Blacklist-Überprüfung.
- Review the result and adjust the inputs if you want to compare another case.
Construct the exact DNSBL lookups for a mail server IP, with runnable dig and nslookup commands, return-code meanings and delisting links. The interactive workspace runs in your browser, so you can review the result without creating an account.
FAQ
What is Email-Blacklist-Überprüfung used for?
Construct the exact DNSBL lookups for a mail server IP, with runnable dig and nslookup commands, return-code meanings and delisting links.
Do I need an account?
No. The tool is available directly in the browser without an account or sign-up.
What should I do if the result looks unexpected?
Check the entered values and compare them with the guidance shown in Email-Blacklist-Überprüfung. Use the result as a planning aid and verify important decisions independently.