You can link a message to one or more contacts for easier future retrieval.
With the message in view, click the Link
to contact(s) link at the bottom left of the
page. This displays the Select contact page. Select one or more
contacts to link to and click OK
to return to the message page.
To break a link, click the Remove links link from the bottom left of the page.
To add a new contact to whom you want to link the message to, click the Create contact link from the bottom left of the page.