Why did I receive an email notification from EUDL regarding new published papers/issue, when it does not have anything to do with my paper?

Each person involved in the making of some iteration of the journal, be it author or editor, has their email address included in its mailing list.

The emails are informative and a means of promotion. If you wish to unsubscribe from a mailing list, you may do so at any time, by using the link at the bottom of each email in your inbox.