Enable Conversation View
To enable Conversation View in Gmail:
In the Gmail inbox screen, select Settings (gear icon). Conversation View is enabled by default on newer Gmail accounts. Use these steps to ensure that it is enabled. Scroll to the bottom of the box until you see Email Threading, then place a check in the box next to Conversation View. You’ll see a message that Gmail must reload to turn on Conversation View. Select Reload. You’ve enabled Gmail Conversation View. With Conversation View off, each email appears in your inbox by itself in reverse chronological order.
Forward a Complete Thread or Conversation of Emails in Gmail
To forward an entire conversation in one message with Gmail:
Go to your inbox and click on the conversation you want to forward. Go to the toolbar and select More (three dots). Choose Forward all. Gmail displays the contents of the new email, which is entitled Forwarded Conversation. Add any comments to the email and address the message. Select Send to send the conversation along with your comments. You can also forward multiple messages from one conversation or many as attachments in Gmail.
