Email Security

Why Business Emails Go to Spam

28.09.2026 · 1 min read

One of the most common problems in business email is having legitimate messages delivered to the spam folder. This can be caused by domain reputation, authentication records, sending behavior and message content.

Why SPF, DKIM and DMARC matter

SPF, DKIM and DMARC help receiving mail systems verify whether a message was sent by an authorized source.

Domain reputation

High bounce rates, spam complaints and inconsistent sending behavior can negatively affect domain reputation.

Message content

Suspicious links, misleading subject lines and risky attachments can increase the chance of a message being filtered.

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