MailmanConfiguration

Configuration for Mailman

The following will allow exim to query Mailman for information whether a list exists in Mailman. It is thus not necessary to have dedicated aliases for a queue in the exim configuration. Exim will pick up the configuration automatically.

transport

mailman:
  driver = pipe
  command = /usr/lib/mailman/mail/mailman \
             '${if def:local_part_suffix \
                  {${sg{$local_part_suffix}{-(\\w+)(\\+.*)?}{\$1} }} \
                  {post}}' \
              $local_part
  current_directory = /var/lib/mailman
  debug_print = "T: mailman for $local_part@$domain."
  group = list
  home_directory = /var/lib/mailman
  user = list

router

mailman:
  driver = accept
  debug_print = "D: mailman for $local_part@$domain"
  domains = CONFDIR/mailman_domains
  local_part_suffix = -bounces : -bounces+* : \
                                  -confirm+* : -join : -leave : \
                                  -owner : -request : -admin
  local_part_suffix_optional
  require_files = /var/lib/mailman/lists/$local_part/config.pck
  retry_use_local_part
  transport = mailman

bounce_mailman:
  driver = redirect
  allow_defer
  allow_fail
  data = :fail: Unknown user
  debug_print = "D: bounce_mailman for $local_part@$domain"
  domains = CONFDIR/mailman_domains
  retry_use_local_part
  # this director bounces all mail from a mailman domain that hasn't been
  # picked up by the mailman director

Alternative configuration

The configuration above will not work for lists ending with -admin, -owner, etc.. Here is an alternative solution (embedded perl is required):

main section

perl_startup = do '/etc/exim4/mailman.pl'
MM_UID = list
MM_GID = list
domainlist mm_domains = whatever1 : wahetever2

router section

mailman_router:
    driver = redirect
    domains = +mm_domains
    data = ${perl{getmmalias}{$local_part}}
    user = MM_UID
    group = MM_GID
    pipe_transport = address_pipe

/etc/exim4/mailman.pl

$MM_HOME='/var/lib/mailman';

sub getmmalias {

opendir(IMD, "$MM_HOME/lists");
foreach $f (readdir(IMD)) {
  unless ( ($f eq ".") || ($f eq "..") ) {
    if ( $f eq $_[0]  ) {
      closedir(IMD);
      return "|$MM_HOME/mail/mailman post $f\n";
    }
    foreach $postf ("admin","bounces", "confirm", "join", "leave","owner", "request", "subscribe", "unsubscribe") {
      if ( "$f-$postf" eq $_[0] ) {
        closedir(IMD);
        return "|$MM_HOME/mail/mailman $postf $f\n";
      }
    }
  }
}

closedir(IMD);
return;
}

2nd alternative for lists with -admin in the name

Another way of dealing with lists with -admin in the name is to have a router to catch the list before the mailman router. e.g.: use the transport from the 1st example and then

router

mailman_pre:
  driver = accept
  debug_print = "D: mailman for $local_part@$domain"
  domains = CONFDIR/mailman_domains
  require_files = /var/lib/mailman/lists/$local_part/config.pck
  retry_use_local_part
  transport = mailman

mailman:
  driver = accept
  debug_print = "D: mailman for $local_part@$domain"
  domains = CONFDIR/mailman_domains
  local_part_suffix = -bounces : -bounces+* : \
                                  -confirm+* : -join : -leave : \
                                  -owner : -request : -admin
  require_files = /var/lib/mailman/lists/$local_part/config.pck
  retry_use_local_part
  transport = mailman

bounce_mailman:
  driver = redirect
  allow_defer
  allow_fail
  data = :fail: Unknown user
  debug_print = "D: bounce_mailman for $local_part@$domain"
  domains = CONFDIR/mailman_domains
  retry_use_local_part
  # this director bounces all mail from a mailman domain that hasn't been
  # picked up by the mailman director

The mailman_pre route will catch the listnames including *-admin lists, while the mailman router will deal with all the administrative requests.