Why Your Emails Go to Spam

A common issue for SMEs is seeing emails land in spam folders or being rejected entirely. In many cases, the problem is not the message content, but the technical configuration of the domain: SPF, DKIM and DMARC.

SPF: who can send for your domain?

SPF defines which servers are allowed to send emails on behalf of your domain. If it is missing or incorrect, providers such as Microsoft 365 or Google Workspace may treat your messages as suspicious.

DKIM: signing your emails

DKIM adds a cryptographic signature to outgoing emails. It helps verify that the message was not modified and that it was sent by an authorized system.

DMARC: anti-spoofing policy

DMARC tells receiving servers what to do when SPF or DKIM checks fail. A proper DMARC policy helps reduce impersonation and phishing campaigns using your domain.

Deliverability impact

Weak configuration can cause emails to be marked as spam, rejected, or damage domain reputation. For a business, this can affect sales, support, invoices and critical communications.