Is there a way to send a report through mail with an extra attachment.
What sort of extra attachment are you looking for? If you are looking to add multiple reports to one email, you can use report sets.
No im looking for adding an extra pdf with how-to-read info.
I don't know if it is something you thought about yet, but you can add text boxes to the cover page of the reports. Maybe you can make instructions on the cover page(s). Customize each report to contain instructions on the cover pages.
Unfortunately I do not think there is a way to add additional files to the emails at this time.