Email troubleshooting guides
STRATO Mail setup guides, organized by problem
Browse STRATO Mail MX, SPF, and DKIM setup guides.
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STRATO Mail: DKIM signature not passingFix STRATO DKIM by identifying the actual sending service: STRATO SMTP signs automatically, while third-party senders require their own DKIM record.
STRATO Mail: MX records not receiving mailRestore STRATO Mail delivery by confirming active mailboxes and matching the domain mail-server mode and public MX route.
STRATO Mail: SPF record for provider sendingFix STRATO Mail SPF by authorizing the actual outbound route in one policy while preserving websites and third-party senders that remain active.
Primary sources: Primary technical reference.