Re: [exim] control outgoing relay

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Autor: Tony Finch
Data:  
A: Raphael Reich
CC: exim-users
Assumpte: Re: [exim] control outgoing relay
On Wed, 11 May 2005, Raphael Reich wrote:
>
> The users (whitch are all system users having maildirs) authenticate
> themselves via SMPT AUTH. The problem is, that e.g. the user tom
> (tom@???) can use any local part as sender address (e.g.
> anything@???). I want to restrict the users to their own local
> part.


In the RCPT ACL for your message submission service, put the following:

# Do return address verification.

  require
    verify         = sender


# Check that authenticated users aren't pretending to be someone else.

  deny
    message        = Sender address does not match authenticated user
    authenticated  = *
  ! condition      = ${if and{{ def:sender_address_data } \
                             {{ eq{$sender_address_data}{$authenticated_id} }} }


In the router that handles email addresses of local users, add

address_data = $local_part

Tony.
--
<fanf@???> <dot@???> http://dotat.at/ ${sg{\N${sg{\
N\}{([^N]*)(.)(.)(.*)}{\$1\$3\$2\$1\$3\n\$2\$3\$4\$3\n\$3\$2\$4}}\
\N}{([^N]*)(.)(.)(.*)}{\$1\$3\$2\$1\$3\n\$2\$3\$4\$3\n\$3\$2\$4}}