> On 02 Mar 2015, at 14:46, Christian Theune <c...@flyingcircus.io> wrote: > > Hi, > > I’m running dovecot 2.2.13 and I ran into a weird problem. > > A user migrated his mailboxes by letting users copy them from their old > server to the new one through their MUA. All that went fine except for one > very weird instance. The user is running Outlook 2010. > > The user has a sub-folder structure which dovecot places as dotted names > beneath the Inbox. (E.g. Maildir/.my.sub.folders). > After copying all data, that user came back to us and complained about > missing mails in their folders. Apparently 3 of her folders disappeared. > > I found folders with similar (but different!) names in the dovecot storage > but with no mails in them. After a while I noticed that something made > dovecot create another level of nesting, like this: > > Maildir/.My.Folder/Subfolder > > In this case the Original folder structure was INBOX - My - Folder - > Subfolder. When the user visited the subscription settings in her MUA she > found the INBOX - My - Folder mailbox which was empty. The Subfolder was > nowhere to be found. This appeared weird to me. I moved the Subfolder back > directly under the Maildir directory and named it “.My.Folder.Subfolder”. > doveadm now lists this folder correctly.
Actually, little correction. It didn’t fail to split a subfolder like this but some (to me unknown) character, maybe whitespace: So the original hierarchy was: “INBOX” - “Some Subfolder” which was turned into Maildir/.Some/Subfolder Christian — Christian Theune · c...@flyingcircus.io · +49 345 219401 0 Flying Circus Internet Operations GmbH · http://flyingcircus.io Forsterstraße 29 · 06112 Halle (Saale) · Deutschland HR Stendal HRB 21169 · Geschäftsführer: Christian. Theune, Christian. Zagrodnick
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