As a tip I do not see shared very often, if you ever run into a situation where you cannot get the vertical spacing correct in lists (or maybe other elements) in Outlook 2007 or 2010, try wrapping a space with strong tags, and add line break (br tag) at the end of the copy. Not sure why, but it fixes a lot of things for me!

Now if I can just work out why the ‘print preview’ loses about a quarter of the lines in a table while it renders perfectly (with your border-collapse td trick) in the actual display window itself …

I recently discovered another fine bug in Outlook 2007.

Believe it or not it has problems with images that have a high height value.

I’ll specify what happened;

I tested a simple HTML newsletter with a header with some menu columns, twitter / facebook icons etc. Then a content image. Then a footer. I tried to explain to the client that putting information in images is not ideal but they wanted it like this.
When I was done I tested it with a content images that was 650px width and 760px height, it worked like a charm everybody was happy..

Then they wanted a content images that had a height of 2000px, I tried everything but it kept displaying like half of the images was loaded AND it gave me a 1px white border between the content image and the footer.

I tried every trick and combined them as well in the end;
border-collapse; border:0px; display:block; all of em.

In the end I had this one little idea; split the images up in 2 images of 650 by 1000 and it worked!! (I still had to put display:block; in the style for both hotmail and gmail for it to display properly everywhere).

So people, Outlook has a new bug… god..

table td {
border:0px;
}

Thanks for the input everybody – was also losing the plot with Outlook 2007.