Applies To
Outlook for Microsoft 365 Outlook on the web New Outlook for Windows
  1. For classic Outlook, in a new message or reply, on the Insert tab, select  Outlook signature icon Signature.

  2. Select a signature from your list.

    Outlook signature dropdown

More things you can do:

To edit or create a new signature, see Add a signature.

To make a default signature for all email messages, see Add a default signature.

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