Online email testing services
Once you HTML email tests fine with several web browsers, the next step is to use an online testing service. Fast Email Sender is a good choice which also allows you to see how you email displays before to send in preview mode.
These will show you exactly how your email displays in different email software, ranging from all versions of Outlook to Yahoo Mail, Gmail and even Iphone, Android 2.2 and Apple Mail 4. some elements of your email might not display fine so if you care about a certain email software, you should go back to HTML code and adjust it accordingly. However, online testing services are inexpensive ways to test your emails before sending them out which is a crucial step in your email marketing campaign.
Besides, there is a range of online email services to choose from, including litmus.com, browsercam.com and campaignmonitor.com and all are designed for the same purpose: to ensure your emails display fine with any browser for your readers convenience.