How Woodpecker detects emails
One of core functions of Woodpecker is to detect messages and stop sending emails if the prospect has responded. Woodpecker needs around 20 minutes to detect a message and can synchronize only with the main "Inbox" folder of your email address.
Setting up forwarding, folders or archiving the message may interrupt the process and Woodpecker will continue to send messages despite the response. If you need to have folders, label, or forwarding set up, please make sure that the copy of the message is visible in the main inbox folder of your mailbox.
An example of email forwarding set up to leave a copy of the message in the inbox: