The preferred way of getting in touch with one of the developers of JaxoDraw is via the mailing lists.
There are two mailing lists established for JaxoDraw:
Note that to minimize our spam rate, we require people to subscribe to any of those lists, before submitting a posting.
In special cases, you may try to contact directly one of the developers.
The JaxoDraw project page at SourceForge has some special pages for querying existing bugs and feature requests. Just follow the "Tracker" link on top of the page. Note that you will need a SorceForge account if you want to submit new issues via the SourceForge tracking system, if you don't want to do that, you should direct all your requests to the mailing list.