Just after finished registration in Acta entomologica serbica online journal system:1. Check your Junk/Spam folder 2. Do a search for "[AES]" or "ljilja.protic@gmail.com" Sometimes, emails will be filtered into an unintended folder. 3. Add the "[AES]" or "ljilja.protic@gmail.com" to your email's list of "Safe Senders"In an effort to prevent/reduce unwanted emails, some email services will recommend that you add trusted senders to a list, to ensure that you only get the mail you want.