On 14/09/2014 04:45, Lena@??? wrote:
>> From: Terry
>
>> I thought I had a handle on what I was doing in
>> rejecting mail to unknown users but a discussion on another list and
>> subsequent googling made me question it.
>>
>> I have the following in acl_smtp_rcpt:
>>
>> require
>> message = 550 5.1.1 Bad destination mailbox address
>> verify = recipient
>
> I advise without "message", then error messages will be more specific.
> For incoming mail (to local domains) to nonexistent users
> a router should generate message like "Unknown user",
> it'll be what sending MTA sees. Please post your such router.
Thank you, Lena. This is where my problem was and why I set the message
because it kept returning 550 Unrouteable address.
I had a router for mail to root as the last router which had no
cannot_route_message. I've removed that router as root is forwarded in
the aliases file so it never gets there. It now returns "550 Unknown
user" when I tested.
These are my routers now:
begin routers
dnslookup:
driver = dnslookup
domains = ! +local_domains
transport = remote_smtp
same_domain_copy_routing = yes
ignore_target_hosts = 0.0.0.0 : 127.0.0.0/8 : 192.168.0.0/16 :\
172.16.0.0/12 : 10.0.0.0/8 : 169.254.0.0/16 :\
255.255.255.255
no_more
virtual_aliases:
driver = redirect
domains = +local_domains
allow_fail
allow_defer
data =
${lookup{$local_part}lsearch{/etc/exim4/virtual/aliases/$domain.aliases}}
virtual_userforward:
debug_print = "R: userforward for $local_part@$domain"
driver = redirect
domains = +local_domains
user = vmail
file = /home/vmail/$domain/$local_part/.forward
require_files = /home/vmail/$domain/$local_part/.forward
no_verify
no_expn
check_ancestor
allow_filter
forbid_smtp_code = true
directory_transport = local_address_directory
file_transport = address_file
pipe_transport = address_pipe
reply_transport = address_reply
skip_syntax_errors
virtual_user:
driver = accept
domains = +local_domains
require_files = +/home/vmail/${domain}/${local_part}/
transport = dovecot_virtual_delivery
system_aliases:
driver = redirect
domains = +local_domains
allow_fail
allow_defer
data = ${lookup{$local_part}lsearch{/etc/aliases}}
local_user:
driver = accept
domains = +local_domains
check_local_user
local_parts = ! root
transport = maildir_home
cannot_route_message = Unknown user
Is there any advantage to returning the extended code in the
cannot_route_message?
I also have local domains lumped in with the virtual domains in
+local_domains. Is it more efficient to separate these and use only the
virtual domains with the virtual routers?
Thanks to everyone for the pointers and help.
--
Terry
