I have created a custom field which is a user picker. But for a transition where in we have to send emails to 2 users one being the reporter and another the user picker custom field , the email is sent only to the reporter. When i checked the atlassian outgoing log file only the reporter's email details has been listed whereas nothing is mentioned about the mail sent to custom field. However in the Mail Queue in Jira i am able to see both these mails sent but in the log file its only mentioned about the mail sent to the reporter. I dont know why the mail is not being sent to the custom user picker field and no logs are generated.