The auto responder email is an email that gets sent automatically to every user after they first sign up. An auto responder email template is created for you, but you almost certainly want to customize it.

Starting from yoursite.com/admin:

Then click auto responder email and edit the Subject and Content fields.

The Subject field simply contains the subject of the auto responder email message.

The Content field should contain the body of the plaintext email message, with special placeholders that are set individually for each user. Please read the help text below the Content field for an explanation of the special placeholders which only be used in the content of the auto responder email template.

There should be exactly one auto responder email at a time, which is easy to enforce if you only edit the existing auto responder without deleting it or creating new ones.