Therefore, you must compete with their default CSS. Since users can open their web based email from any of the popular web browsers, we have to focus less on the embedded “rendering engine” and more on how your email 1.) looks in every popular web browser and 2.) gets interpreted by each email client.įor example: Gmail sets very strict restrictions on embedded CSS, whereas Hotmail uses an outdated doc type which may alter the way your images and text will render.Īs if that wasn’t enough, your email will render inside the Gmail, Yahoo, and Hotmail user interface. Web based email clients present an entirely different challenge. * The version of IE that is used to render your email depends on what the user has installed on their local machine. In order to control potential spam and spyware threats, each client then sets restrictions on supported HTML, CSS and scripting elements. Desktop Email ClientsĮach desktop client uses an embedded rendering engine in order to display your email. In taking into account the complexity of testing your email, we must first consider the most popular email applications used today. Although our email testing simulation is intended to make your life much easier, it is still vitally important to test your email in each of the popular web browsers as well.
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