It seems like you are trying to extract the email body using the “Headers” property, which will not return the email body. Instead, you should use the “Body” property to extract the email body.
Can you try this-
Use the “Get Outlook Mail Messages” activity to retrieve the email message you want to extract the body from.
Use a “For Each” loop to iterate over each email message.
Within the loop, use the “Get IMAP Mail Message” or “Get POP3 Mail Message” activity (depending on your email server type) to get the full email message with the body.
Use the “MailMessage.Body” property to extract the email body as a string.