how does it work and whats the cost?

The most important factor when sending emails is that you have the recipient’s permission to do so. It is also a good idea to remind people of why they are receiving an email in the first place. Always use an obvious unsubscribe link and act upon any requests within one week. As far as a recipient is concerned the most important factor is that the email content is relevant to their interest – choose your recipients with care.

Remember that images do not usually display immediately and that users will be prompted to download them. Therefore it is a good idea to keep as much text as possible as html, not produced as images. For a designer, that means producing the text in a html friendly font such as Arial, Times, Verdana or Trebuchet.

Try and get the message across in the very top section of the email, as this could be the only part of the email a recipient will see.

Always specify a legitimate 'From' name and email address.

Images behind html text can be an issue as background images are not supported across all email clients. Outlook 2007 is the most common offender.

Most of the emails we produce are between 600 and 640 pixels wide. This gives enough usable space for content without too much horizontal scrolling for most users.

NOTE: A4 size is 585 pixels wide.

If you need animation then animated gifs are the only way to go. Remember that Outlook 2007 will only display the first frame of the animation.

Javascript is not supported in email clients therefore you cannot produce things such as rollover buttons.