[Dovecot] Another hint from the clue box 8-) imapc/imap proxy user mailbox server location

[Timo Sirainen]

On 4.3.2012, at 16.48, Terry Carmen wrote:

>>  pass_attrs = ..., \
>>  msExchHomeServerName=userdb_imapc_host=%49.100$.example.com
>> 
>>  If the prefix differs, but all of the exchange server names have the same length, for example 10, you can also do:
>> 
>>  pass_attrs = ..., \
>>  msExchHomeServerName=userdb_imapc_host=%-10$.example.com
>>  There's no otherwise nice way to parse this string.
> 
> 
> If by prefix, you mean the "/O=example/OU=INT/cn=Configuration/cn=Servers/" part, then, yes, they're different.

OK, so if the prefix or suffix isn't always the same length you can't do the above.

> I could export the data to a text file as username:homeexchangeserver (or whatever other format is needed).
> 
> homeservers.txt:
> user1:exch1.example.com
> user2:exch1.example.com
> user3:exch1.example.com
> user4:exch2.example.com
> 
> Is it possible to do a lookup in a text file to get this?


If you can use userdb passwd-file and export the data to that file, it'll work. http://wiki2.dovecot.org/AuthDatabase/PasswdFile

Example line:

user1::1000:1000::/home/user::userdb_imapc_host=exch1.example.com

Note that you can't then return any userdb fields from passdb ldap lookup.