In order to use RunSignup, your browser must accept cookies. Otherwise, you will not be able to register for races or use other functionality of the website. However, your browser doesn't appear to allow cookies by default.
If you still see this message after clicking the link, then your browser settings are likely set to not allow cookies. Please try enabling cookies. You can find instructions at https://www.whatismybrowser.com/guides/how-to-enable-cookies/auto.
RunSignUp's new email template is the default template for all automated and manual emails.
You can still use legacy email templates with the full range of options to customize by going to Email Marketing >> New Email Template.
You can create a blank template with minimal design. Alternatively, you can paste source code that you create or that you copy & paste from an external email client. As an example, I created an email template in MailChimp and pasted the source code into RunSignUp