#12 [Gmail]/Foo mailboxes broken in 1.1.0

[Ripper]

This is my config file:

MaildirStore local
    Path "/home/kparal/tmp/user@gmail.com/"
    Inbox "/home/kparal/tmp/user@gmail.com/Inbox"

IMAPStore gmail
    RequireSSL yes
    Host imaps:imap.gmail.com
    CertificateFile /etc/ssl/certs/ca-bundle.crt
    User user@gmail.com
    Pass PASS

Channel gmail
    Master :gmail:
    Slave :local:
    Sync Pull
    Create Slave
    Expunge Slave
    SyncState *
    Pattern *

This used to work with isync 1.0.6:

$ mbsync -c "$MBSYNCRC" "gmail:[Gmail]/Koncepty"
Reading configuration file /home/kparal/tmp/user@gmail.com/mbsyncrc
Resolving imap.gmail.com... ok
Connecting to 173.194.70.108:993... ok
Connection is now encrypted
Logging in...
Channel gmail
Selecting slave [Gmail]/Koncepty... 1 messages, 0 recent
Selecting master [Gmail]/Koncepty... 1 messages, 0 recent
Synchronizing
Expunging slave

And this is now broken with isync 1.1.0:

$ mbsync -c "$MBSYNCRC" "gmail:[Gmail]/Koncepty"
Reading configuration file /home/kparal/tmp/user@gmail.com/mbsyncrc
Channel gmail
Opening master gmail...
Resolving imap.gmail.com... ok
Connecting to imap.gmail.com (74.125.136.108:993)... 
Opening slave local...
Connection is now encrypted
Logging in...
Selecting master [Gmail]/Koncepty...
Selecting slave [Gmail]/Koncepty...
Maildir error: '/home/kparal/tmp/user@gmail.com/[Gmail]/' is no valid mailbox

My directory structure:

$ find '[Gmail]'
[Gmail]
[Gmail]/Koncepty
[Gmail]/Koncepty/.mbsyncstate
[Gmail]/Koncepty/cur
[Gmail]/Koncepty/cur/1388233992.4481_1.titan,U=1:2,S
[Gmail]/Koncepty/new
[Gmail]/Koncepty/tmp
[Gmail]/Koncepty/.uidvalidity

[Oswald Buddenhagen]

what you are seeing is a side effect of proper support for subfolders (the use of slashes in mailbox names was previously entirely unspecified).

you should be able to get the previous behavior by defining a separate IMAPStore with the [Gmail]/ prefix in Path.
but you may want to use the Flatten option instead.

you may find [feature-requests:#5] interesting as well ... prospectively.

[Ripper]

I added Flatten to my local store and it seems to work well. Thanks.

[Raam Dev]

I'm experiencing this same issue trying to setup mbsync for the first time with my Gmail account. Basically I can't get it to sync my Inbox; it just keeps telling me:

Maildir error: '/Users/raam/Maildir/' is no valid mailbox

@Ripper You said that you added Flatten to your local store and it works, but what did you define as the delim for Flatten? Could you share your working config?

[Raam Dev]

I got it working by setting up separate channels for INBOX and my other [Gmail]/Folders as described here: https://sourceforge.net/p/isync/mailman/message/31638141/