When selecting an ESP, consider the following factors:
Deliverability Rates: Research the deliverability rates of potential ESPs and opt for those with the highest rates. Feature Set: Ensure the ESP offers features that meet your specific needs, such as automation, segmentation, and A/B testing. Pricing: Compare pricing plans and choose one that provides the best value for your budget. Customer Reviews: Read customer reviews and testimonials to gauge the reliability and performance of the ESP. Trial Period: Take advantage of free trials to test the ESP's features and performance before making a commitment.