On 03/03/16 11:21, jarek wrote:
> Is it possible, to configure exim, so it will drop/reject message
> processing after first "Unknown user" ?
Yes. An ACL verb "drop" with a condition of "not my user" (detail
depends on your definition of this, so I can't write it for you),
in your recipient ACL.
Docs:
http://exim.org/exim-html-current/doc/html/spec_html/ch-access_control_lists.html
--
Cheers,
Jeremy