Do one of the following:
Stop using an automatic signature for all new messages or for those you reply to or forward
This procedure stops signatures for messages that use either the Microsoft Outlook or Microsoft Word e-mail editor.
Stop signatures for all new messages
In the Signature for new messages list, click <None>.
Stop signatures for messages you reply to or forward
In the Signature for replies and forwards list, click <None>.
Note If Word is your e-mail editor, you can turn off signatures in Word, too. For more information, see Word Help.
Leave the automatic signature off of a new message you create
After creating the message, select the signature, and then press DELETE.
Delete a signature from the list of those available
On the Tools menu, click Options, and then click the Mail Format tab.
Under Signature, click Signatures.
Select the signature you want to delete, and then click Remove.