[Dovecot] Courier Migration

[Ed W]

Hi

Is it legal/sensible to use the following in the conf file

# default namespace
namespace private {
  separator = /
  prefix =
  inbox = yes
}

# for backwards compatibility:
namespace private {
  separator = .
  prefix = INBOX.
  inbox = yes
  hidden = yes
}


The goal would be to migrate away from an Courier server, whilst still 
supporting clients using their old settings, but going forward they can 
use the new settings?

In particular I always noticed that OE would not set the namespace 
automatically, so being able to leave it blank would be an advantage 
(fewer config issues for customers)

Grateful if someone could confirm this works ok?  Compatibility issues 
with Thunderbird/OE/Outlook 2003+ in particular?

Cheers

Ed W