How can one avoid sending mail after an `at' ?

[Jacques Sap]

The man pages say:

>     Standard output and standard error output are mailed to  the
>     user  unless  they  are  redirected  elsewhere.

So I tried "at now +......    >& /dev/null"

But I still receive mail after completion, how to avoid it ?
-- 
Jacques SAP     Alcatel Alsthom Recherche
		Route de Nozay, 91460 MARCOUSSIS, FRANCE
                Tel. 64.49.11.47, sap at aar.alcatel-alsthom.fr