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 '. 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