Sameer K [https://community.jboss.org/people/0sameerk0] created the discussion "Exception when trying to use email service jbpm5.3" To view the discussion, visit: https://community.jboss.org/message/756120#756120 -------------------------------------------------------------- I have a flow as start-->email-->end node. When i am running the below code in a standalone java file it is working and i am getting mail in mailbox. EmailWorkItemHandler emailHandler=new EmailWorkItemHandler(smtp, port, "my-emailid-on that smtp","my password"); emailHandler.getConnection().setStartTls(true); ksession.getWorkItemManager().registerWorkItemHandler("Email", emailHandler); But when i run this in jboss application server then it is throwing an error as below: *javax.mail.AuthenticationFailedException: No authentication mechansims supported by both server and client* I also tried running it in jboss with null username and password EmailWorkItemHandler emailHandler=new EmailWorkItemHandler(smtp, port,null,null); emailHandler.getConnection().setStartTls(true); ksession.getWorkItemManager().registerWorkItemHandler("Email", emailHandler); then it is throwing below error: *com.sun.mail.smtp.SMTPSendFailedException: 550 5.7.1 Anonymous client does not have permissions to send as this sender* Pls tell me which username and password should i use and whether i need to do any configuration changes? -------------------------------------------------------------- Reply to this message by going to Community [https://community.jboss.org/message/756120#756120] Start a new discussion in jBPM at Community [https://community.jboss.org/choose-container!input.jspa?contentType=1&...]