Dear authors, reviewers and readers,

With undesirable frequency, some e-mail services or providers forward messages sent to you through our platform to the spam box (the sender is revista_ojs@ufpr.br), with the obvious negative consequences. We have had problems, for example, with the @hotmail domain, and recently Gmail started to interpret some of our messages as spam. The same seems to happen with some institutional servers, whose addresses end, for example, with gov.br.

Fortunately, the solution to the problem is relatively simple. In addition to checking your spam box frequently, there are two things you can do. The first is to add the sender revista_ojs@ufpr.br to your contacts. The other is to configure your software or email service to not consider our messages as spam. All software, applications and email services allow this. The procedures vary depending on the software, but in some cases just click with the right mouse button on a message from us that is in your spam box and an option “mark as non-spam” or similar will appear. In other cases, you will need to change the software Settings, but usually the path and procedures are simple and intuitive.

We are sorry for the inconvenience, but we count on your support to minimize the problem.

Best wishes,

The editors