The 5 Deliverability Factors

Why Your Emails Land in Spam (and How to Fix It)

1. Domain authentication

Set up SPF, DKIM, and DMARC records. Your email platform will guide you — takes 10 minutes. Without these, Gmail and Outlook treat your emails as suspicious.

2. Sender reputation

Send from a business email (yourname@yourbusiness.com), NOT Gmail or Yahoo. Free email addresses tank deliverability for bulk sends.

3. List hygiene

Remove subscribers who haven't opened in 6+ months. A clean list beats a big list. High bounce rates destroy your sender score.

4. Content signals

Avoid:

• ALL-CAPS subject li