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In classic Outlook, select File > Options > Mail > Signatures.
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Under Select signature to edit, select a signature name to see its definition.
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In new Outlook, inÂ
 Mail, on the View tab, select  View settings. -
Select Accounts > Signatures.Â
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Below Create and edit signatures, open the dropdown list to see the names of the existing signatures. Select a name to see what that signature looks like.