The third tab on the main MaxBulk Mailer screen allows you to preview what your message will look like once the personalized data has been merged into the document and the signature added. You can also make sure headers and contents match all previous introduced data. You check each individual record by using the left and right arrows on the top left.

Built-in preview is able to display all the message formats supported by MaxBulk Mailer from 'Plain Text' to 'Web Page'. However, if your message contains styles or some HTML code, you may want to preview it using a standard browser as well. You can do this by using the 'Preview in Browser' (eye icon) pull-down menu and then by selecting a browser from the list (Default Browser, Safari, Internet Explorer, Netscape Navigator, Opera, Mozilla or iCab). That list also contains a 'View Source' menu that lets you display the HTML source behind a given rendered HTML message.

The thin grey line running down the screen on plain text preview is called the "Philips Bar" and shows where the 72nd column is located. This has historical reasons dating back to days when all e-mail was plain text and expected to fit on a 80 column by 24 (or 25) line screen. To make e-mail that had been forwarded easy to read when the quoting character, usually a <, was added to each line, it was customary to limit the length of each line to 72 characters to allow for this. Today, some e-mail clients still expect this, and not everyone uses a Graphic User Interface, so to be 100% compatible, it is often recommended that you still conform to this standard when writing plain text messages. Use the Line Length Checking option to reproduce hard wrap effects.