OK, thank you very much Jon,
I have some problem with a course within I created a Badge.
The message is set and I selected to attage imege of the badge in the message.
As name and address I didn't set the default e-mail address, but the name and the address of the organization.
Many participants telling me they have not get the mail... They can only see the internal message.
Which problem could be according your experience?
The Cron file is OK, other messages comes in and goes out... Where can I verify?