In addition to the Outlook 2007 rules, emails should also utilize the most commonly standards:

* Width size should not exceed 550 px.
* Graphics containing copy must include ALT tags.
* Ensure that ampersands (&) are not used in ALT tags as it breaks the code during importing.
* Ampersands in HTML text (whether in the creative or disclaimer) must be written in as “&” in the email’s code.
* Do not use “id” or “class” with images or tables.
* Use a consistent font in the disclaimer and ensure that it is formatted with font tags rather than CSS.
* The page must be written in HTML.