> > Tim apparently said: -
> > > What are the steps needed to accept mail for several virtual domains?
> > Under the /usr/exim/configure file add the following: -
> >
> > local_domains = lsearch;/usr/exim/table/local.dom
> > local_domains_include_host_literals = true
> > local_interfaces = ipaddress:127.0.0.1
> >
> > And then add the your virtual hosts to be accepted into
> > /usr/exim/table/local.dom
> >
> > That should sort you out with Virtual domains
>
> Thats making more domains local, this is not what is traditionally
> meant by "virtual domains".
>
> If I host a domain foo.dom on my machine as a virtual domain I expect it
> to be completely virtual and seperate from other mail domains that end
> up on my machine. pir@??? may or may not be me ...
And of course it is possible to do a very interesting solution to
this using LDAP.
Selected portions of my configuration using LDAP:
# Routers entries
# ensure we don't attempt delivery unless MX points to this host
lookuphost:
driver = lookuphost,
self = fail_soft,
transport = smtp;
# punt to director if MX points to this host
self:
driver = lookuphost,
self = local,
transport = smtp;
# Director entries
# lookup virtual users in directory IFF MX matches "virtual..fireplug.net"
virtual_fireplug_net_aliasfile_ldap:
condition = "${if match{$self_hostname}{virtual..fireplug.net}{$domain}}"
driver = aliasfile;
search_type = ldap,
expand,
errors_to = sl@???
queries = "ldap:://wilt.fireplug.net/?mailforwardingaddress?sub?(&(mail=$local_part@$domain)(ou=accounts)):\
ldap:://wilt.fireplug.net/?mailforwardingaddress?sub?(&(mail=\\\\2a@$domain)(ou=accounts))"
# specify vacation processing IFF prefix of address is "vacation-"
vacation_prefix:
condition = "${if match{$local_part}{.*%.*}{$domain}}"
driver = smartuser
prefix = "vacation-"
transport = vacation_delivery
new_address = "${if match{$local_part}{(.*)%.*}{$1}{$domain}}@${if match{$local_part}{.*%(.*)}{$1}{$domain}}"
# specify delivery to pop mailbox IFF prefix of address is "pop-"
pop_prefix:
condition = "${if match{$local_part}{.*%.*}{$domain}}"
prefix = "pop-"
driver = smartuser,
transport = pop_delivery;
new_address = "${if match{$local_part}{(.*)%.*}{$1}{$domain}}@${if match{$local_part}{.*%(.*)}{$1}{$domain}}"
# specify delivery to imap mailbox IFF prefix of address is "imap-"
imap_prefix:
condition = "${if match{$local_part}{.*%.*}{$domain}}"
prefix = "imap-"
driver = smartuser,
transport = imap_delivery;
new_address = "${if match{$local_part}{(.*)%.*}{$1}{$domain}}@${if match{$local_part}{.*%(.*)}{$1}{$domain}}"
# Transport entries
# perform delivery to pop mailbox
pop_delivery:
driver = appendfile;
#create_directory,
from_hack,
file = /var/mail/${domain}/${lc:$local_part},
user = mail,
group = mail,
# perform delivery to imap mailbox
imap_delivery:
driver = appendfile;
no_from_hack,
prefix = "",
suffix = "",
maildir_format,
create_directory,
directory = "/var/imap/${domain}/${length_2:${lc:$local_part}}/${lc:$local_part}/INBOX",
user = mail,
group = mail,
# perform vacation processing
vacation_delivery:
driver = autoreply
file = /etc/exim/vacation-msg.txt
file_optional
user = mail
group = mail
to = $sender_address
subject = "Autoreply: Vacation message for ${local_part}@${domain}"
headers = "Mime-Version: 1.0\nContent-Type: multipart/mixed; boundary=\"m1Stw9KgbdL9/HM9\""
text = "--m1Stw9KgbdL9/HM9\nContent-Type: text/plain; charset=us-ascii\n\
Content-Disposition: attachment; filename=\"${local_part}@${domain} vacation message\"\n\
\n\n${expand:${lookup ldap\
{ldap://src.fireplug.net/?mailAutoReplyText?sub?(&(mail=${local_part}@${domain})(ou=accounts))}{$value}{}}}\n\
\n--\n${local_part}@${domain}\n\n"
log = "/var/mail/${domain}/${local_part}_vlog"
once = "/var/mail/${domain}/${local_part}_vdb"
To use this we have LDAP entries for each user that look something like:
bjectclass: top
objectclass: account
objectclass: mailRecipient
objectclass: fireMessagingUser
objectclass: person
objectclass: organizationalPerson
objectclass: inetorgPerson
objectclass: fireNewsAccess
uid: richard@???
mail: richard@???
mailforwardingaddress: richard@???
mailforwardingaddress: vacation-richard%fireplug.net@???
mailforwardingaddress: richard%fireplug.net@???
userpassword: abcedfg
cn: richard
sn: richard
mailautoreplytext: I'm on vacation
The exim ldap lookup simply finds the entry based on the mail attribute
and returns the mailforwardingaddress attribute value.
This can take several forms and is multi-valued. For example:
richard@???
deliver somewhere else, in this case to another
address on another server
pop-richard%big-cats.com@???
deliver into pop mailbox in virtual host directory
for big-cats.com on server popserver.fireplug.net
vacation-richard%big-cats.com@???
perform vacation processing for user
This setup has the interesting property that we can setup multiple
mailbox servers with identical configuration files that will all
deliver mail to mailboxes they are told to deliver to or will forward
to the correct server for the mailbox. All of the interesting
information about where to deliver mail for a user is in the LDAP
server database.
In other words, not only can a single host act as a server for
multiple virtual domains, but all of the virtual domains can have
mailboxes spread across a number of physical servers.
--
Stuart Lynne <sl@???> 604-916-4741 <http://www.poste.com>
PGP Fingerprint: 28 E2 A0 15 99 62 9A 00 88 EC A3 EE 2D 1C 15 68
--
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http://www.exim.org/ ***
