The root cause is: com.sun.mail.smtp.SMTPSendFailedException: 552 5.3.4 Message size exceeds fixed maximum message size Your smtp server is telling you that your message is too big. Change the configuration of your smtp server to allow larger messages, or send smaller messages.

The root cause is: com.sun.mail.smtp.SMTPSendFailedException: 552 5.3.4 Message size exceeds fixed maximum message size Your smtp server is telling you that your message is too big. Change the configuration of your server to allow larger messages, or send smaller messages.