Group emails into conversations

You can choose whether replies to emails are grouped in conversations, or if each email shows up in your inbox separately. 

When people reply to an email, Gmail groups their responses together in conversations, with the latest email at the bottom of a conversation thread.

A conversation breaks off into a new conversation when the subject line changes, or the conversation gets to more than 100 emails.

Turn conversation view on or off

Change the conversation list density

1. On your computer, open Gmail.
2. At the top right, click Settings .
3. In the "Quick settings" menu, scroll to the "Density" section.
4. Select an option:
   • Default
   • Comfortable
   • Compact

Learn how Gmail groups automated emails

If you manage a system that sends automated email notifications to a group of people, Gmail might automatically group them into the same conversation. 

Emails are grouped if each message meets the following:

• The same recipients, senders, or subjects as a previous message
• A reference header with the same IDs as a previous message
• Sent within one week of a previous message

To prevent grouped emails:

• Create a new subject for each message that you don’t want to group.
• Send each message with a unique reference header value that doesn’t match a previous message.  

Related resources

• Change your Gmail settings
• Accessibility in Gmail