It depends on various elements. It would be better if you provide us more details on why your customers or clients are unsubscribing from your emails. Some of the strategies to retain your subscribers are: a. Tailor your lists - To make sure you only send relevant content to the people. b. Let subscribers choose - Allow them to choose the kind of emails they’d like to receive to get fewer unsubscribers and more engagement. c. Conduct exit surveys - This could be done on your unsubscribe page where they can select the reason for their departure. If there is a common issue, you may want to address it. d. Provide value - Make sure you actually have a reason to send an email. Don’t be intrusive. e. Be mobile-friendly - If it looks distorted and impossible to read on smartphones where a majority of the people are on, then expect more unsubscriptions. f. Don’t spam - Focus on optimal frequency instead of pushing an email a day and annoying them. g. Provide exclusive content - Don’t be redundant by providing the same content that is on other channels such as social media. Create a sense of exclusivity around your list by running email-only insights, discounts, and promotions. Feel free to contact us for your any type of requirement, and we will get back to you with details.