Send yourself a test email. Before sending an email to a list of people, send one to yourself. Read over the email carefully and keep an eye out for poor formatting or incorrectly sized pictures. Check the email in multiple browsers and use different devices to see if it works across different platforms. Click all the links within the email and make sure they are working as intended.
The primary cost of poorly crafted or mis-targeted emails is lost business opportunities, though in extreme cases it can damage a firm’s reputation as well. But the potential payoff for effective email marketing is substantial; email messages are more likely to be seen and acted upon by decision makers than online content, social media, or advertising.