To convert html.jelly to inline HTML styles (for Gmail and other webmail clients): 1. Fork Pynliner from https://github.com/rogerhu/pynliner and pip install Pynliner. (Hopefully the changes will be merged into the main branch at rennat/pynliner#1). 2. Run jelly_pynliner.py. It will read html.jelly and output html_gmail.py. 3. Within the Hudson email-extended config, set: ${JELLY_SCRIPT,template="html_gmail"}