https://answers.axonivy.com/questions/4143/max-thread-limit-exceeded-when-using-office365-smtp-server<p>Hi,</p> <p>When using Office365 SMTP server to send email with IVY (daily summary), I got an error from the SMTP server :</p> <p>com.sun.mail.smtp.SMTPSendFailedException: 432 4.3.2 STOREDRV.ClientSubmit; sender thread limit exceeded [Hostname=VI1P190MB0189.EURP190.PROD.OUTLOOK.COM]</p> <p>This error occurs because IVY try to send more then 3 emails at the same time (using multiple threads). I didn't find any configuration I can change in the system properties to limit the number of thread used.</p> <p>Do you have any workaround for this ?</p> <p>Tx in advance.</p> <p>Fabien Duay</p>enWed, 13 Nov 2019 07:42:22 -0500https://answers.axonivy.com/questions/4143/max-thread-limit-exceeded-when-using-office365-smtp-server/4167<p>Just looked into the source of axon.ivy 5.1 and did not find any configuration that allows to reduce the pressure on the remote SMTP.</p>Reguel WermelingerWed, 13 Nov 2019 07:42:22 -0500https://answers.axonivy.com/questions/4143/max-thread-limit-exceeded-when-using-office365-smtp-server/4167