Author: David Woodhouse Date: To: W B Hacker CC: exim users Subject: Re: [exim] conducive.org
On Wed, 2006-10-18 at 18:43 +0800, W B Hacker wrote: > As we have no such user as:
> gandalf.llorien.org-1159383911-testing@???
> This was neither....
That's done in order to reduce the load on the server we call out to.
While we happen to be connected after a successful callout, we try a
second RCPT with an address which is fairly sure to fail. If _that_ is
accepted, we assume that the server in question will accept _all_
callouts, so we don't bother to make any more (at least until the cache
expires).
