Invitation emails are intended for volunteers with an account, to start logging hours in the system.
By default, this is the invitation email:
To modify the email template, go to Organizer Dashboard.
Click on the Settings tab, then More Settings:
Click on Email Templates. Insert your personal Subject and/or Message, then click on Save.
You can use the tokens to automatically populate the information that is unique to your site, such as a link to the volunteer log. If you want to use one of the token as a hyperlink (i.e. Click on this link), you will need to use the format <a href="!login_url">Click on this link</a>
To change your template back to the default message, delete your personalized message and click on Save.