Check first · Which Outlook do I have?
New Outlook
You're on the right page.
Classic Outlook
Go to classic Outlook guide02Add a signature in classic Outlook
Click File › Options › Mail
Click Signatures…
Click New and name the signature
Paste or type the signature in the editor
Choose defaults for New messages and Replies/forwards
Click OK to save
03Add or resize a logo
Use the Image button in the signature editor. Microsoft documents resizing via right-click › Picture › Size rather than dragging. Hosted https images avoid the images-as-attachments problem.
FAQ
How do I add a signature in classic Outlook?+−
Open File › Options › Mail › Signatures, click New, paste your signature, assign defaults for new mail and replies, then OK.
Where is the signature button in classic Outlook?+−
While composing, open the Message tab › Include group › Signature to pick a signature for that message. Permanent defaults are under File › Options › Mail › Signatures.
Does classic Outlook sync to new Outlook?+−
For Microsoft 365 mailboxes, cloud roaming can share signatures between new Outlook and the web. Classic still has its own editor; if signatures differ, edit in new Outlook or the web for the cloud copy.
Related