added replyto address configuration

dockerfiles/commul-customization/local.properties

@@ -133,7 +133,8 @@ mail.extraproperties = mail.smtp.starttls.enable=true
 # Eurac IAL: Contact information
 lr.help.mail = clarin@eurac.edu
 lr.help.phone = +39 0471 055 129
-mail.from.address = lindat.mail@unibz.it
+mail.from.address = ${MAIL_USER}
+mail.replyto.address = noreply@scientificnet.org
 mail.feedback.recipient = clarin@eurac.edu
 info.recipient = clarin@eurac.edu
 mail.alert.recipient = ${mail.admin}