I haven’t used Exchange specifically, but those settings don’t look right – for SSL, your port is probably not 25; also, you’ll probably need to provide credentials.
Regards,
Alec Smecher
Public Knowledge Project Team
OJS logs its errors in the PHP error log. There’s a FAQ entry for information on how to find this. If nothing is logged there, and you don’t see an error message when you try to send a message, it’s likely that your mail server is accepting the messages but failing to deliver them; you might need to check your mail server’s log to debug that.
Regards,
Alec Smecher
Public Knowledge Project Team