Mailtool allows users to send an email message to site particpants. Also it provides rich-text editing, file attachment, group/section-aware recipient selection, and a field for specifying non-site participant email addresses.
On the Options page, you can set Mailtool defaults for the site.
NOTE: To access the Options page, you must be assigned a role with the necessary permissions. For a basic understanding of roles and permissions, see What are Permissions and Roles?