- There is no single ideal email send frequency that will fit all brands’ needs
- Once or twice a week seem to produce the highest engagement
- Marketers face the challenge of finding and fine-tuning the optimal frequency for their brands with testing and evaluation.
- Discover the relationship between email send frequency and engagement and how to optimize your send frequency for customer engagement, regardless of industry.

Via: Marketing: Case Studies & Know-How from MarketingSherpa