Hello, We have a problem with OTRS 2.4.7 under a Debian system. The notification emails for the agents are not sent when a new email is coming to a queue. I have dumped the SMTP exchange between the OTRS host and the SMTP relay and I could find : - OTRS system sends MAIL FROM<> - the SMTP relay receives the mail's content - but the SMTP relay closes the exchange with 550 Administrative prohibition In fact, the notification email is sent with an empty FROM field. The SMTP server refuses to deliver it because of SPAM rules. In the configuration system page with "Framework -> Core", I set an existing email in NotificationSenderEmail field. I also added in Kernel/Config.pm $Self->{'NotificationSenderEmail'} = 'XXXX@XXXX.com'; How can I configure the sender email for the notification ? Regards. -- Eric Boudrand http://www.thegreenbow.com