[Dovecot] sieve/dovecot folder separator inconsistency

[Daniel Mayer]

Hi,

I'm running dovecot 1.0.15 and ran recently into a problem with the 
folder separators when using sieve scripts.

The server is set to use a slash as a folder separator for all 
namespaces and announces this correctly when issuing the NAMESPACE 
command. We are using Ingo (http://www.horde.org/ingo/) of the horde 
framework to manage our sieve scripts. It creates the folder name / 
folder path to be used in the sieve scripts based on the result of the 
NAMESPACE given by the IMAP Server. It therefore created the path 
separated by  slashes ("/").

According to my tests, the delivery agent along with sieve expects the 
folders to be separated by dots (".") instead of slashes. Is this a 
correct observation or can this be set using a parameter or something 
similar?

The result of this otherwise inconsistent behavior is that a client who 
sticks to the provided namespace creates a folder path which cannot be 
understood by the deliver process.

Please let me know if you need any additional information.

Thanks,
Daniel