By default all messages created in Group Mail are text messages. This is basic and default format for email messages. If you want to create messages that contain formatting and images etc. you need to check out the HTML Messages section.
HTML formatted messages are gaining in popularity all the time - there is one problem with them though - not all recipients are capable of viewing them properly. We would recommend that you send text messages to recipients by default. If you also send HTML messages you can invite recipients to cross over to receive the HTML editions of your message.
Group Mail also supports dual messages, whereby both messages are sent at the same time in the one email - the recipients email client can then select which part to view. This only works with MIME compliant email software.
Creating a text message
Please see this step by step guide to creating a simple text message.
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