You can change the default reply setting that's displayed when you open a message.

Note: If the instructions don't match what you see, you might be using an older version of Outlook on the web. Try the Instructions for classic Outlook on the web.

  1. At the top of the page, select SettingsSettings> View all Outlook settings.

  2. Select Mail > Compose and reply.

  3. Under Reply or Reply all, choose your default response when you reply from the reading pane:

    • Reply: Your reply is sent only to the sender.

    • Reply all: Your reply is sent to everyone on the To and Cc lines.

Instructions for classic Outlook on the web

  1. At the top of the page, select Settings Settings > Options.

  2. In the Options pane, select Mail > Automatic processing > Reply settings.

  3. In Reply settings, choose the option you prefer:

    • Reply: Your reply is sent only to the sender.

    • Reply all: Your reply is sent to everyone on the To and Cc lines.

  4. Select Save.

Create, reply to, or forward email messages in Outlook on the web

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