If you didn’t already know, Outlook 2007 and 2010 use Microsoft Word for rendering all html emails. This handles the html in different ways and also brings in some unwanted properties from Word such as print boundaries.

Word kindly adds in a space within the email almost like a print margin called a ‘text boundary’. The problem seems to happen around 23.7inches (1,790 pixels approx.)

For example -

There are a couple of possible solutions published on the internet but I don’t think these are too reliable. The best way we have found is to split the large table into two smaller stacked tables that are less than 23.7 inches in height. Then Word won’t add in the text boundary automatically.

This will probably involve restructuring your tables within the email. It’s something to bear in mind the next time you start a new email design.

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