How often you should send newsletters depends on your target audience, your content and your goals. In general, you can follow these guidelines: - Don't send too often: Sending too many emails can be perceived as spam and lead to subscribers unsubscribing. - Keep a regular frequency: Send your newsletters at regular intervals to keep recipients engaged and updated. - Adapt the frequency to your content: If you have highly valuable and time-sensitive content, it may be appropriate to send newsletters more frequently. If your content is more general and timeless, you can send newsletters less frequently. - Consider asking your subscribers about their preferences and test different frequencies to see which one gives the best results for your business and your target audience.