#spf
Artikel zum Thema #spf
E-Mail & Zustellbarkeit26.08.2026 · 5 Min. Lesezeit
Why your emails go to spam (and how to fix it)
Emails land in spam because of broken authentication, poor sender reputation, or content that trips filters — here's how to diagnose and fix each one.
E-Mail & Zustellbarkeit05.08.2026 · 5 Min. Lesezeit
DMARC policy: none, quarantine or reject — which should you use?
A practical guide to choosing p=none, quarantine or reject in your DMARC record, and how to move to full enforcement without breaking legitimate mail.
Domains & DNS27.07.2026 · 7 Min. Lesezeit
20 DNS security checks every domain should pass
A practical DNS security checklist covering DNSSEC, CAA, SPF/DKIM/DMARC, zone transfers and nameserver hygiene — with commands you can run today.
E-Mail & Zustellbarkeit15.07.2026 · 5 Min. Lesezeit
How to create a secure SPF record
Learn how to write an SPF record that actually stops spoofing, without tripping the 10-lookup limit that breaks most real-world setups.
In Sekunden startklar
Bring deine gesamte Infrastruktur in ein modernes Dashboard.
Kostenloser Plan · Keine Kreditkarte nötig · In Minuten eingerichtet