Determining deliverability

[Kevin P. Fleming]

Pat Lashley wrote:

> I've been thinking about finding the cycles to whip out a utility
> that would take a local_part on the command line; and return success
> or failure to indicate whether it is deliverable.  It would work by
> starting an LMTP session and issuing a RCPT; then RSET and QUIT after
> getting the response to the RCPT.  Having to spawn a task to do that
> is a bit ugly; but I don't think Exim has a way to do it internally.
> (Or at least not directly.  I might be able to do something with the
> built-in perl lib...)
> 

Follup: I mistyped, that should have been "verify = recipient/callout" 
in your ACL, otherwise Exim will only verify that you have a router 
that will accept the address, not that that it's actually deliverable.