Jabber ID with at symbol

[email protected] Mon, 4 Jul 2005 16:12:16 -0300 (BRST)

Newsgroups	gmane.network.jabber.exodus.user
Message-ID	<[email protected]>

Hi,

Is there an way to use the @ (at symbol) in the username on jabber ID?
Example: user@domain@server

Thanks in advance,

Daniel