[xwiki-users] Not able to send the mail to user||Not even getting the logs

Hi All, I have done the configuration for email setup i.e given the smtp server,smtp port,smtp server username , smtp sever password (i believe last two parameters are my email id and password)but still i see below error The message could not be sent to scott: email server error. Even i can not see any logs generated for this email error under my tomcat directory. Thanks