Thomas Neumann <[EMAIL PROTECTED]> wrote:
>
>I think Exchange can also use ETRN to tell another SMTP
>server that it wants it to send queued mail, but ETRN
>is even worse, being incredibly insecure
Not true. TURN is incredibly insecure, because it feeds messages back
over an unverified connection, but ETRN is as secure any other SMTP
exchange. Basically, it's just telling a server "hey, if you've got
any mail for host X, you should try sending it now".
>and qmail doesn't
>support it w/o a patch anyway, so stay away from it.
qmail+serialmail supports AutoTURN, which is like ETRN, but doesn't
require the remote site to send an ETRN command.
-Dave
