On 4.12.2012, at 17.10, Thomas Hummel wrote:

I've been using dovecot from many years now using Maildir mailbox format with default layout (Maildir++, everthing in a single directory).

What would be the reason(s) to convert to Layout=fs ?

Some people already are using fs layout for their maildirs, for example with mutt, and want to preserve that.

I can only think of one : to allow dots in mailbox names. And even in that case, I guess I still have the option to use the litescape plugin.

Yeah.

Besides, how would one process to do the conversion ? Using dsync ?

That's the easiest way.

BTW. There's also the possibility of using LAYOUT=maildir++ with mbox format. That makes even less sense. :)