I download mail.jar packet that use to mail operation. I test the jar at MyEclipse and it work. The problem is that I can't import class that come from mail.jar. And I try to add the path of the mail.jar to Classpath in Computer envirement, but it doesn't work. So can I use the mail.jar?
To use a external jar in a strategy, you need to inform the strategy where is this library... you need to use the @Library annotation. You can see more about in https://www.dukascopy.com/wiki/#Include_libraries . I've done a article about the use of mail inside a strategy... you can find it on Article Library at Article Contest.