I use OTRS since  1.2 version, the notifications for user or agents are work very fine in old versions. In this month I install OTRS 2.2.5 version in REDHAT 5. The auto response and message for the administrator work very fine but the all notifications for agent or user dont work. I receive this error:

Sat Mar 15 11:39:15 2008	notice	OTRS-CGI-10	Sent agent 'NewTicket' notification to 'groldan@gennassis.com'.
Sat Mar 15 11:39:15 2008	error	OTRS-CGI-10	Can't use from: ! Enable debug for more info!
Sat Mar 15 11:39:14 2008	notice	OTRS-CGI-10	Sent agent 'NewTicket' notification to 'fsarria@gennassis.com'.
Sat Mar 15 11:39:14 2008	error	OTRS-CGI-10	Can't use from: ! Enable debug for more info!
Sat Mar 15 11:39:13 2008	notice	OTRS-CGI-10	Sent auto response (SendAutoReply) for Ticket [2008031510000013] (TicketID=32, ArticleID=) to 'Fernando Sarria <fsarria@gennassis.com>'.
Sat Mar 15 11:39:12 2008	error	OTRS-CGI-10	Can't use from: ! Enable debug for more info!

I enable debug but I have the same result.

Please, someone to know what is the problema?

Thanks in advance for your help, Fernando Sarria