I am able to use email-ext with pipeline to send emails. I am trying to use jelly templates. I do not see an option for the template processor in the following. I tried adding *SCRIPT* to the body.
emailext attachLog: true, body: ' ${SCRIPT, template="html/test.groovy"}', subject: 'Test of email', to: 'someaddr...@somedomain.com' -- You received this message because you are subscribed to the Google Groups "Jenkins Users" group. To unsubscribe from this group and stop receiving emails from it, send an email to jenkinsci-users+unsubscr...@googlegroups.com. To view this discussion on the web visit https://groups.google.com/d/msgid/jenkinsci-users/f7ed76fc-7c0d-4b5d-b582-5e39d468809d%40googlegroups.com. For more options, visit https://groups.google.com/d/optout.