Email Triggers allows you to apply a tag to a contact when they respond to your Infusionsoft/Keap emails.
How It Works
Apply a Tag on a Reply
Choose the tag you'd like applied when the contact responds to the email
Use a Keyword
Choose if you want to only apply the tag if the subject line of their response includes a specified keyword
Send Your Email
Simply send your email with Infusionsoft/Keap and PlusThis will start automating followup based on their response.