portsnap aftre http proxy

[Miroslav Koula]

Hi,

I have a server behind the http proxy and I would like to use portsnap
to upgrade the ports collection. I am running FreeBSD 6 and:

portsnap fetch

Gives me:

Looking up portsnap.Freebsd.org mirros... none found.
Fetching public key... failed.

I have seen the portsnap.conf, butt looks good... I have set
HTTP_PROXY variable to my .profile file using:

set HTTP_PROXY=http://proxy.ourserver:3128

but still the same...

Where could be the problem?

Thanks

mIREK