For now I have changed the router as follows and this seems to work ok:-
localuser:
driver = accept
check_local_user
local_part_suffix = +*
local_part_suffix_optional
transport = dovecot_delivery
transport_home_directory = /tmp
cannot_route_message = Unknown user
# stat /home/NEWCOL/s12345
stat: cannot stat `/home/NEWCOL/s12345': No such file or directory
# exim -v -odf s12345
Test.
.
LOG: MAIN
<= root@??? U=root P=local S=367
delivering 1IIljr-0000Q7-T7
LOG: MAIN
=> s750598 <s12345@???> R=localuser
T=dovecot_delivery
LOG: MAIN
Completed
#stat /home/NEWCOL/s12345
File: `/home/NEWCOL/s12345'
Size: 4096 Blocks: 8 IO Block: 4096 directory
Device: fd02h/64770d Inode: 1272962 Links: 5
Access: (0700/drwx------) Uid: (16777219/ s12345) Gid:
(16777218/Domain Users)
Access: 2007-08-08 14:38:17.000000000 +0100
Modify: 2007-08-08 14:38:17.000000000 +0100
Change: 2007-08-08 14:38:17.000000000 +0100
Regards
--
Chris Hills | Tel: +44 (0)1527 572754
IT Services | Fax: +44 (0)1527 572901
North East Worcestershire College | Web: http://www.ne-worcs.ac.uk/