I found the answer :-(
http://xwiki.markmail.org/message/q2fzrdxfxvnprfax?q=smtp
On Wed, Jun 25, 2008 at 8:25 PM, Squirrel <squirrel(a)shadowgmail.com> wrote:
Hi,
I decided to not install any email software on my server, as I don't have
the time and the knowledge to maintain it. I'm used from various PHP
application to use an external SMTP server with authentication, which is
very practical for my purposes...so, is it possible to configure XWiki to
take a SMTP server with authentication (like smtp.gmail) without having a
mail application installed on the server?
Thanks,
Squirrel