Glossary · O

Open Rate

A metric that measures how many recipients opened an email campaign compared to the total number delivered.

Open rate is an email marketing metric that shows the percentage of recipients who opened an email out of the total number delivered. It helps marketers measure engagement, test subject line effectiveness, and understand audience interest. Factors that influence open rates include sender reputation, audience segmentation, timing, and personalization. A strong open rate indicates that the email content and subject line resonate with the target audience.

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Open Rate — VULK Glossary | VULK