The frequency of your emails will depend on your audience, your industry, as well as the message you want to pass to your subscribers. Sending emails too frequently, or waiting too long before sending an email are both detrimental to your email marketing efforts. Ideally, you should send at least two emails every month, and no more than three emails every week (except for your email welcome series). A good way to get the right emailing frequency is to create a preference center and have your subscribers choose how often they want to hear from you