rupert wrote:
> can you please give me an example for this?
> I created a file mysql-virtual_mailhosts.cf which returns the
> mailhost and added this query to the transport maps.
> now the logfile fills with this message
> backend-B1 postfix/qmgr[18086]: warning: connect to transport
> backend-B1.fra1.mailcluster: No such file or directory
> my understanding is that when I return the right value to postfix,
> postfix by itself than starts the lookup to the right host.
>
> cheers
Don't have a MySQL map example handy, but I do have an LDAP config used
during a migration process
# Temp use of the transport map to allow accounts still on old servers
to function
transport_maps = ldap:ldaptransport
ldaptransport_server_host = <redacted>
ldaptransport_version = 3
ldaptransport_bind_dn = <redacted>
ldaptransport_bind_pw = <redacted>
ldaptransport_search_base = <redacted>
ldaptransport_scope = sub
ldaptransport_query_filter =
(&(mail=%s)(!(mailhost=<localserver>))(mailuserstatus=active))
ldaptransport_result_format = smtp:[%s]
ldaptransport_result_attribute = mailhost
The critical bits.
The filter should only return for a valid active local (local as in
within the service group) account where the account name matches the
incoming name and the target is not the local (as in this specific
server or delivery group with shared spool) system.
The result_format, smtp: sets the transport type, and the [ ] tells
postfix that it is a direct target (in the case of smtp:, skip MX lookup
for the returned name and perform direct delivery to the returned value.
In the above example, the domains and accounts maps already restricted
to "domains valid for the delivery group" and "accounts valid within the
local group". Since I knew that the only mailhost values in LDAP were
the new systems or 5 old systems I did a
!= <localserver> filter (if valid but not local must be one of the 5 old
systems). In the case of a less controlled mailhost attribute, a
mail=%s && mailhost=A|B|C|D (explicit allow list) might be better. If
explicit filter, just make sure that the filter on each server
*excludes* itself.
From the listed error message, I am guessing that you are missing the
result_format bit.
>
>
> On Fri, Feb 8, 2008 at 11:33 AM, Christopher E. Brown
> <[EMAIL PROTECTED]> wrote:
>> Gordon Messmer wrote:
>> > rupert wrote:
>> >> How can I get postfix to deliver the email to the right host?
>> >> At the moment postfix creates a new maildir when the recipient is on
>> >> the remote host.
>> >> therefore the new mail does not list the new email.
>> >>
>> >> havent found a howto that covers this, for now.
>> >>
>> >> maybe you have some knowledge about that.
>> >>
>> >
>> > Not I. My experience with postfix is pretty limited. Check in on their
>> > user list...
>>
>> If you are splitting a domain across multiple servers without a shared
>> access mail spool postfix needs to
>>
>> 1) Be aware of the list of valid users
>>
>> 2) known where to send it (local/non-local)
>>
>>
>> To get 2, a transport map with a SMTP target of the mailhost can be used
>>
>>
>> Postfix would then
>>
>> 1) perform LDAP/MySQL/other lookup to determine if domain is valid for
>> local accept
>> 2) Lookup address to determine if exists
>> 3) Accept message
>> 4) check the transport map (transport map lookup returns mailhost and
>> search filter is mailhost != this systems mailhost value)
>> a) no transport map lookup return (when mailhost = <localmailhost>),
>> deliver local
>> b) transport map returns a targer (when mailhost != <localmailhost>),
>> deliver via smtp:<mailhost> target
>>
>> When setup correctly this works much like the PROXY function in courier
>> POP/IMAP.
>>
>>
>> --
>> ------------------------------------------------------------------------
>> Christopher E. Brown <[EMAIL PROTECTED]> desk (907) 550-8393
>> cell (907) 632-8492
>> IP Engineer - ACS
>> ------------------------------------------------------------------------
>>
--
------------------------------------------------------------------------
Christopher E. Brown <[EMAIL PROTECTED]> desk (907) 550-8393
cell (907) 632-8492
IP Engineer - ACS
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