Hello,

I'm in the process of migrating mailbox from one dovecot server running 

dovecot 2.1.9 with mailboxes stored in maildir format to a newer one running 2.1.16 with mailboxes stored in mdbox format.

To migrate mailboxes I'm using dsync as explained at 

http://wiki2.dovecot.org/Tools/Dsync. The command I'm running in the newer server is:

sudo dsync -o mailbox_list_index=no mirror -R -u <user> imapc:

The mailbox of the user is correctly synced to the newer server, except 

the lazy_expunge namespace, which is not synced at all.

The config in my old server is:

namespace { # hidden = yes # list = no # Temporally, only for migration hidden = no list = yes location = maildir:~/Maildir/expunged prefix = BORRADOS. separator = . }

and in the newer one is:

namespace { hidden = yes list = no location = mdbox:%h/expunged:INDEX=/mail/indexes/%2Ln/%Ln/expunged prefix = BORRADOS/ separator = / }

With a tcpdump I have checked that old servers list the namefolder, 

this is the IMAP dialog for an example user:

• OK [CAPABILITY IMAP4rev1 LITERAL+ SASL-IR LOGIN-REFERRALS ID ENABLE IDLE AUTH=PLAIN] Dovecot ready. 2 AUTHENTICATE PLAIN YW5nZWwubHVpcwBtYXN0ZXIAVkFzR293ZW0= 2 OK [CAPABILITY IMAP4rev1 LITERAL+ SASL-IR LOGIN-REFERRALS ID ENABLE IDLE SORT SORT=DISPLAY THREAD=REFERENCES THREAD=REFS THREAD=ORDEREDSUBJECT MULTIAPPEND UNSELECT CHILDREN NAMESPACE UIDPLUS LIST-EXTENDED I18NLEVEL=1 CONDSTORE QRESYNC ESEARCH ESORT SEARCHRES WITHIN CONTEXT=SEARCH LIST-STATUS SPECIAL-USE QUOTA ACL RIGHTS=texk] Logged in 1 LIST "" ""

• LIST (\Noselect) "." "" 1 OK List completed. 3 LIST "" "*"

• LIST (\HasNoChildren) "." "SPAM"

• LIST (\HasNoChildren) "." "Trash"

• LIST (\HasNoChildren) "." "Drafts"

• LIST (\HasNoChildren) "." "INBOX"

• LIST (\Noselect \HasNoChildren) "." "BORRADOS" 3 OK List completed. 4 STATUS "SPAM" (UIDNEXT UIDVALIDITY)

• STATUS "SPAM" (UIDNEXT 3 UIDVALIDITY 1316372649) 4 OK Status completed. 5 EXAMINE "SPAM"

• FLAGS (\Answered \Flagged \Deleted \Seen \Draft) ...

  But "BORRADOS" is never selected in the rest of the dialog.

  Any idea?

-- Angel L. Mateo Martínez Sección de Telemática Área de Tecnologías de la Información y las Comunicaciones Aplicadas (ATICA) http://www.um.es/atica Tfo: 868889150 Fax: 868888337