Q0430 - Exim/exim GitHub Wiki
Q0430
Whenever Exim tries to route a local address, it gives a permission denied error for the .forward file, like this:
1998-08-10 16:55:32 0z5y2W-0000B8-00 == [email protected] <[email protected]>
D=userforward defer (-1): failed to open /home/xxxx/.forward
(userforward router): Permission denied (euid=1234 egid=101)
Have you remembered to make Exim setuid root?