Images may display incorrectly or appear to be cut off commonly in Outlook 2007 and higher. Unfortunately this is an issue that is common with Outlook due to Microsoft utilizing their own rendering engine to display their emails. This can also cause unintentional spacing as well.
Our Programmers have observed that tables or text boundaries that extend past 1,790 pixels, Microsoft will insert a line partition vertically or horizontally. This is the main cause of unintentional spacing and images be cut. Making changes to the email for Outlook may cause other inboxes to look differently too.