The RRDsFeederSchedulable send mail to the config "smtp.mail.sysadminto" that is not mandatory
It leads to
jakarta.mail.SendFailedException: No recipient addresses at com.sun.mail.smtp.SMTPTransport.sendMessage(SMTPTransport.java:1250) at org.ametys.core.util.mail.SendMailHelper$MailSender._sendMail(SendMailHelper.java:1007) at org.ametys.core.util.mail.SendMailHelper$MailSender.sendMail(SendMailHelper.java:912) at org.ametys.core.util.mail.SendMailHelper$MailBuilder.sendMail(SendMailHelper.java:668) at org.ametys.runtime.plugins.admin.jvmstatus.monitoring.RRDsFeederSchedulable._sendAlertMail(RRDsFeederSchedulable.java:188)
Should not try to send mail or send it to the "sender" adress : "smtp.mail.from"