[exim] Different password for remote SMTP relay

|Hi,

Currently I have my exim configuration set to send all e-mails using an
external SMTP server. All users authenticate with my exim server with a
local password and then the messages sent is relayed through a smarthost
to a remote SMTP server, which uses a different login compared to the
one used directly by the users connected to my exim server (running
cPanel). Here's the current configuration:

     remote_route:
       driver = manualroute
       domains = !+local_domains
       transport = remote_transport
       route_list = * remotesmtpserver.com

     remote_transport:
       driver = smtp
       port = 587
       hosts_require_auth = <; $host_address
       hosts_require_tls = <; $host_address

     remote_login:
       driver = plaintext
       public_name = LOGIN
       hide client_send = : remote_username : remote_password

This all works well and as intended.

The problem is that I want to use a different remote_username and
remote_password for a select group of users/senders. The login names
(for my exim server) are full e-mail addresses, so I have added these
e-mail addresses to a file /etc/differentlogin (i.e list of e-mail
addresses separated by a new line).

I then tried following setup in the remote_login section:

     remote_login:
       driver = plaintext
       public_name = LOGIN
       hide client_send = 
${lookup{$authenticated_id}lsearch{/etc/differentlogin}{: 
different_username : different_passsword}{: remote_username : 
remote_password}

However this gives me the following EXIM error when attempting to send
e-mails:

       == to@??? R=remote_route T=remote_transport defer (-48): 
expansion of "${lookup{$authenticated_id}lsearch{/etc/differentlogin}{" 
failed in mandrill_login authenticator: missing } at end of string

I attempted using $sender_address instead of $authenticated_id, but this
gives me the same result.

Adding another } as suggest, i.e
|

||    hide client_send = 

${lookup{$authenticated_id}lsearch{/etc/differentlogin}}{:
different_username : different_passsword}{: remote_username :
remote_password}

gives me failed login (the login details are correct, but maybe an
additional } is added to the login instructions or something):

     SMTP<< 435 4.7.8 Error: authentication failed:|

To check the syntax of my conditional I tried to add the following to my
remote_transport (without the additional } ):

     headers_add = X-SenderTest: 
${lookup{$authenticated_id}lsearch{/etc/differentlogin}{different}{normal}}

This works as expected and add the following header when sending an
e-mail from the addresses/logins noted in the list /etc/differentlogin:

     X-SenderTest: different

Anyone got any tips? Is there a way I can log the username/password that
is being used to login to the remote SMTP with?

I was originally going to create two different authenticators and two
route/transport but I could find no way to have to plaintext
authenticators and define a specific one for the different
route/transport. If this is possible it may be cleaner that way.

Your help is much appreciated.

Jacob
|