[exim] Verifying local addresses for inbound emails when using Dovecot/pipe transport

[Sebastian Arcus via Exim-users]

Is there a way to build a router only for verification of local 
addresses for inbound messages? As far as I can tell, verify = recipient 
doesn't work when Exim delivers to Dovecot through dovecot-lda - as this 
always verifies the recipient (as long as the domain is in 
+local_domains) no matter what the local part is. I guess the only way 
is to construct an extra router, which does verification separately, 
maybe against a separate list of local addresses in a file?

--
## List details at https://lists.exim.org/mailman/listinfo/exim-users
## Exim details at http://www.exim.org/
## Please use the Wiki with this list - http://wiki.exim.org/