Maciej Swiderski [http://community.jboss.org/people/swiderski.maciej] replied to the discussion "Error sending email in jbpm-4.2" To view the discussion, visit: http://community.jboss.org/message/545158#545158 -------------------------------------------------------------- First of all please add : mail.debug set to true to mail properties: Properties properties = new Properties(); properties.put("mail.smtp.host", "10.1.1.20"); properties.put("mail.debug", "true"); that should print quite some information. Please attach the log file to the discussion. What version of mail.jar are you using? -------------------------------------------------------------- Reply to this message by going to Community [http://community.jboss.org/message/545158#545158] Start a new discussion in jBPM at Community [http://community.jboss.org/choose-container!input.jspa?contentType=1&...]