Why business emails go to spam: a practical checklist

Incoming spam protection does not guarantee inbox placement for outgoing mail. Recipient providers assess authentication, reputation, content and user feedback.

Investigate one example

Distinguish a rejection from a delivered message moved to spam. Record the time, recipient provider and error code, and obtain message headers where available.

• Check SPF, DKIM and DMARC alignment.
• Look for compromised accounts or websites sending without permission.
• Use clear subjects and expected content, and avoid unsolicited lists or sudden bulk sending.
• For false positives, review individual messages rather than disabling filtering broadly.

These packages are intended for ordinary business communication, not bulk marketing. Send support the relevant error details without passwords. See Google's sender guidelines.

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