On Thu, 9 Jul 2009, Reinaldo de Carvalho wrote: > On Thu, Jul 9, 2009 at 2:05 AM, Pascal > Gienger<Pascal.Gienger@xxxxxxxxxxxxxxx> wrote: >> >> Imagine a Cyrus Box only accepting LMTP connections, no sendmail, no >> Postfix, no other SMTP MTA running on it. >> Then imagine a frontend smtp relay delivering directly via LMTP over TCP >> to your Cyrus box. You can use lmtp auth then to prevent other machines >> from directly delivering mails via lmtp. >> >> Pascal > > Set a firewall. Cyrus (and lmtpd) support tcp-wrappers, so it is trivial to allow connections from only your trusted MTA hosts. Still, using lmtp auth is not a bad idea, and it is required in a Cyrus murder environment. Andy ---- Cyrus Home Page: http://cyrusimap.web.cmu.edu/ Cyrus Wiki/FAQ: http://cyrusimap.web.cmu.edu/twiki List Archives/Info: http://asg.web.cmu.edu/cyrus/mailing-list.html