If that is not the case, proceed to adjusting some of the other options: NOTE: Make sure that your signature contains NO special formatting, and especially important: it should not contain any images. To make sure that the maximum number of people can read your email, you need to make some small modifications in the way that you send email. While Microsoft's Outlook is a completely capable mail client, it does not necessarily play well with other mail clients that adhere to recognized and accepted mail formats. If you are reading this, you probably have received complaints from someone or the other that your email is 'garbled', 'unreadable', 'bloated' or that your attachments are not coming through.
Outlook: Settings for maximum readability