emailing to Trac?

Hi devs, There's a feature I've wanted for some time, and I don't see a good reason not to ask: Is it possible to email comments into Trac? My commute involves a ~40 minute train ride, which I generally can use productively despite no connection. One of the biggest annoyances, though, is that I can't respond to Trac comments while on the train. It would be great if there were an email address to write to that would post a comment. Of course, it's easy enough for me to write and locally cache a response, but then I have to remember to flush the cache and it's all a bit annoying. Does Trac have this feature? Is it perhaps already enabled but not advertised? Thanks! Richard