How can I "teach" eM about spam?

I have email that goes directly to the “Junk” folder, How can I “teach” to eM that email is not spam and it is a “good” one.?

Currently eM Client relies on the server to mark the mail as spam. Most of the free mail servers and company mail servers already have a spam filter installed.
So if your server marks the message as spam and you are using POP3 for retrieval of such message, eM Client moves it into Junk E-mail.