[Dovecot] mdbox and folders containing both messages and sub-folders

[Rich Wales]

Repying to Timo Sirainen:

> What is the error message exactly? I'm wondering if the error is coming from
> Dovecot or if Larch is somehow confused internally and giving bogus errors.

Certainly a reasonable question.  I tried to enable full debugging output in
both Dovecot and Larch, but I couldn't get anything helpful.

Is there a way to make Dovecot report all IMAP commands and responses, so I
can see exactly what the client is asking for, and exactly why Dovecot is
refusing to do it?

Alternatively, does anyone here know Ruby (the language Larch is written in)
well enough to say how to make its low-level IMAP module give a full logging
of all commands and responses?

For what it may or may not be worth, I'm trying my same mail migration test
using Maildir instead of mdbox, and it appears to be working fine.

Rich Wales
richw at richw.org