On mobile, how do I reply to an email thread in a discussion topic?

1. Review the discussion history and the email thread participants shown at the bottom. 2. If you have not connected your mailbox, follow the prompt and go to "Personal Profile Settings > My Mailbox" on the desktop version to connect it. 3. Enter your message in the "Enter a message" field. If needed, tap "Attachment" (paperclip icon) or "Camera" (camera icon) to add attachments or photos. 4. Tap "Send" (paper airplane icon) in the lower-right corner to send the message.