paul at nfg
Aug 14, 2012, 4:05 AM
Post #2 of 2
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On 08/14/2012 12:14 PM, Ralph Ballier wrote:
> we use dbmail with LDAP authentication from server A. Now we have the
> problem, that we have to use for one new maildomain LDAP
> authentication from server B.
You are talking about 'sharding' the authenitication backend.
> Is it possible to configure dbmail so, that LDAP default
> authentication comes from server A, but if mail arrives for a certain
> domain, authentification switches to server B?
DBMail itself does not support this. You need to:
- setup a dbmail installation that talks exclusively to the second ldap
server
- setup a imap/pop3 proxy that know which dbmail backend to talk to,
based on the login
- update your MTA transport tables so your MTA also knows which server
to deliver email to
The dovecot proxy might fit the bill:
http://wiki.dovecot.org/HowTo/ImapProxy
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