Promolayer can send autoresponders (follow-up emails) after a user submits a form with an email field.
Single emails can be sent immediately or with a delay. Multiple emails can be sent in a chain with a variable delay between each.
Setting up an autoresponder
Create an email template (instructions here).
Navigate to the 'Actions'. tab of the display editor.
3.Select your template and when you would like to send it.
4.In the case you would like to send multiple emails after the signup use the [Add] button to add as many emails as needed.