[JDEV] smtp-transport Q's

[dlb]

I'm new to jabber and am looking for info on the nature and status of
jabber server's smtp-transport capabilities.

** is smtp-tranport integrated with the release version - or is it an
extension ?
** what does this transport provide  - can it both send and read smtp
wrapped messages ?
** I've found the s-t cvs area & a few jdev posts , but haven't been
able to locate futher info  - any leads  ?

thanks