Add a signature to outgoing messages

To add a signature to outgoing messages

On the Tools menu, click Options, and then click the Signatures tab.
To create a signature, click New and then either enter text in the Edit Signature box or click File, and then find the text or HTML file you'd like to use.
Select the Add signatures to all outgoing messages check box.

Notes

To use different signatures for different accounts, in the Signatures area, select the signature, click Advanced, and then select the account you want to use the signature with.
To use a signature on individual messages only, make sure to clear Add signatures to all outgoing messages. When you compose the message, on the Insert menu, point to Signatures, and then click the signature you want to use.