I have edited the below files for email customizations.
$JHOME/atlassian-jira/WEB-INF/classes/templates/email/html/issuementioned.vm
$JHOME/atlassian-jira/WEB-INF/classes/templates/email/html/issueresolved.vm
$JHOME/atlassian-jira/WEB-INF/classes/templates/email/html/issuecommentedited.vm
$JHOME/atlassian-jira/WEB-INF/classes/templates/email/html/issueclosed.vm
$JHOME/atlassian-jira/WEB-INF/classes/templates/email/html/issuecommented.vm
$JHOME/atlassian-jira/WEB-INF/classes/templates/email/html/issuegenericevent.vm
$JHOME/atlassian-jira/WEB-INF/classes/templates/email/html/issuedeleted.vm
$JHOME/atlassian-jira/WEB-INF/classes/templates/email/html/issueassigned.vm
$JHOME/atlassian-jira/WEB-INF/classes/templates/email/html/issueupdated.vm
However these dont work for batch emails , what files do i edit to get similar templates ?