Summary : Email marketing continues to outperform other digital channels, generating an impressive average ROI of $36 for every $1 spent. Yet, many marketers fail to maximize their potential due to poor tracking and ineffective strategies. This comprehensive 2025 guide to performance-based email marketing explains how to measure ROI accurately, identify key performance metrics, and […] The post Performance Based Email Marketing: A Proven Guide to Double Your ROI [2025 Data] appeared first o...