Hi,

I've got the same issue and I don't use auxiliary accounts. Nobody can show mails in any subfolders since I've updated SOGo to 1.3.9.

Here the errors :

ERROR] <0x0xa5af054[NGImap4Connection]> could not select URL:
imap://user@imapserver.mydomain/folder/subfolder/: {RawResponse =
"{ResponseResult = {description = \"Mailbox does not exist\"; result = no;
tagId = 27; }; }"; reason = "Mailbox does not exist"; result = 0; }

[ERROR] <0x0xa5af054[NGImap4Connection]> could not fetch 102 uids for url:
imap://user@imapserver.mydomainu/folder/subfolder

I've just tried with Google Mail and things work perfectly for me.

Are you sure it's not your web browser cache that is broken?

If not, you might want to enable full IMAP debugging and paste a complete trace.

Ok, I can't right now but just to clarify, I can't create any new subfolders too.

Sorry, my bad.

I set NGImap4ConnectionStringSeparator to "/" and that was bad.

It's ok for me, maybe not for buzzdee as my issue was a little bit different.

Sorry for taking so long.

I ran SOGo with the following parameters:
-ImapDebugQualifierGeneration YES -ImapDebugEnabled YES

My default IMAP is a cyrus imapd, which uses the default . as folder separator, but it seems, the GMail uses the / as folder separator.

I don't have the NGImap4ConnectionStringSeparator default set.

here the output when trying to access GMail account:

S[0x6b58b3c8]: OK Gimap ready for requests from 212.37.172.162 by19if10061412bkb.46
C[0x60793688]: 1 login myusername@mydomain.net <PASSWORD>
S[0x6b58b3c8]: CAPABILITY IMAP4rev1 UNSELECT IDLE NAMESPACE QUOTA ID XLIST CHILDREN X-GM-EXT-1 UIDPLUS COMPRESS=DEFLATE
S[0x6b58b3c8]: 1 OK myusername@mydomain.net Sebastian Reitenbach authenticated (Success)
C[0x60793688]: 2 capability
S[0x6b58b3c8]: CAPABILITY IMAP4rev1 UNSELECT IDLE NAMESPACE QUOTA ID XLIST CHILDREN X-GM-EXT-1 UIDPLUS COMPRESS=DEFLATE
S[0x6b58b3c8]: 2 OK Success
C[0x60793688]: 3 namespace
S[0x6b58b3c8]: NAMESPACE (("" "/")) NIL NIL
S[0x6b58b3c8]: 3 OK Success
C[0x60793688]: 4 LIST "" ""
S[0x6b58b3c8]: LIST (\Noselect) "/" "/"
S[0x6b58b3c8]: 4 OK Success
C[0x60793688]: 5 select "myusername.RapidEye"
S[0x6b58b3c8]: 5 NO [NONEXISTENT] Unknown Mailbox: myusername.RapidEye (Failure)
Nov 29 09:50:21 sogod [20691]: [ERROR] <0x0x658ef3c8[NGImap4Connection]> could not select URL: imaps://myusername%40mydomain.net@imap.gmail.com/myusername/RapidEye/: {RawResponse = "{ResponseResult = {description = \" Unknown Mailbox: myusername.RapidEye (Failure)\"; flag = NONEXISTENT; result = no; tagId = 5; }; }"; access = NONEXISTENT; reason = " Unknown Mailbox: myusername.RapidEye (Failure)"; result = 0; }
127.0.0.1 - - [29/Nov/2011:09:50:21 GMT] "POST /SOGo/so/sebastia/Mail//1/foldermyusername/folderRapidEye/unseenCount HTTP/1.1" 200 13/0 3.809 - - -
C[0x60793688]: 6 logout
S[0x6b58b3c8]: BYE LOGOUT Requested
S[0x68dc87e8]: OK Gimap ready for requests from 212.37.172.162 by19if10061506bkb.46
C[0x5fe3d608]: 1 login myusername@mydomain.net <PASSWORD>
S[0x68dc87e8]: CAPABILITY IMAP4rev1 UNSELECT IDLE NAMESPACE QUOTA ID XLIST CHILDREN X-GM-EXT-1 UIDPLUS COMPRESS=DEFLATE
S[0x68dc87e8]: 1 OK myusername@mydomain.net Sebastian Reitenbach authenticated (Success)
C[0x5fe3d608]: 2 capability
S[0x68dc87e8]: CAPABILITY IMAP4rev1 UNSELECT IDLE NAMESPACE QUOTA ID XLIST CHILDREN X-GM-EXT-1 UIDPLUS COMPRESS=DEFLATE
S[0x68dc87e8]: 2 OK Success
C[0x5fe3d608]: 3 namespace
S[0x68dc87e8]: NAMESPACE (("" "/")) NIL NIL
S[0x68dc87e8]: 3 OK Success
C[0x5fe3d608]: 4 LIST "" ""
S[0x68dc87e8]: * LIST (\Noselect) "/" "/"
S[0x68dc87e8]: 4 OK Success
2011-11-29 09:50:30.097 sogod[20691] <0x0x5ea85d88[PostgreSQL72Channel]: connection=<0x0x677e5a98[PGConnection]: connection=0x0x6ab5f000>>: message: WARNING: nonstandard use of \ in a string literal
LINE 1: UPDATE sogo_user_profile SET c_settings = '{"folderINBOX...
^
HINT: Use the escape string syntax for backslashes, e.g., E'\'.

C[0x5fe3d608]: 5 select "myusername.RapidEye"
S[0x68dc87e8]: 5 NO [NONEXISTENT] Unknown Mailbox: myusername.RapidEye (Failure)
Nov 29 09:50:31 sogod [20691]: [ERROR] <0x0x6519df48[NGImap4Connection]> could not select URL: imaps://myusername%40mydomain.net@imap.gmail.com/myusername/RapidEye/: {RawResponse = "{ResponseResult = {description = \" Unknown Mailbox: myusername.RapidEye (Failure)\"; flag = NONEXISTENT; result = no; tagId = 5; }; }"; access = NONEXISTENT; reason = " Unknown Mailbox: myusername.RapidEye (Failure)"; result = 0; }
C[0x5fe3d608]: 6 getquotaroot "INBOX"
S[0x68dc87e8]: QUOTAROOT "INBOX" ""
S[0x68dc87e8]: QUOTA "" (STORAGE 1029993 26214400)
S[0x68dc87e8]: 6 OK Success
127.0.0.1 - - [29/Nov/2011:09:50:31 GMT] "POST /SOGo/so/sebastia/Mail//1/foldermyusername/folderRapidEye/uids HTTP/1.1" 200 218/28 9.732 - - -
C[0x5fe3d608]: 7 logout
S[0x68dc87e8]: BYE LOGOUT Requested
S[0x656f6248]: OK Gimap ready for requests from 212.37.172.162 ec4if10060213bkb.84
C[0x66d78388]: 1 login myusername@mydomain.net <PASSWORD>
S[0x656f6248]: CAPABILITY IMAP4rev1 UNSELECT IDLE NAMESPACE QUOTA ID XLIST CHILDREN X-GM-EXT-1 UIDPLUS COMPRESS=DEFLATE
S[0x656f6248]: 1 OK myusername@mydomain.net Sebastian Reitenbach authenticated (Success)
C[0x66d78388]: 2 capability
S[0x656f6248]: CAPABILITY IMAP4rev1 UNSELECT IDLE NAMESPACE QUOTA ID XLIST CHILDREN X-GM-EXT-1 UIDPLUS COMPRESS=DEFLATE
S[0x656f6248]: 2 OK Success
C[0x66d78388]: 3 namespace
S[0x656f6248]: NAMESPACE (("" "/")) NIL NIL
S[0x656f6248]: 3 OK Success
C[0x66d78388]: 4 LIST "" ""
S[0x656f6248]: LIST (\Noselect) "/" "/"
S[0x656f6248]: 4 OK Success
C[0x66d78388]: 5 select "myusername.RapidEye"
S[0x656f6248]: 5 NO [NONEXISTENT] Unknown Mailbox: myusername.RapidEye (Failure)
Nov 29 09:50:40 sogod [20691]: [ERROR] <0x0x63c05248[NGImap4Connection]> could not select URL: imaps://myusername%40mydomain.net@imap.gmail.com/myusername/RapidEye/: {RawResponse = "{ResponseResult = {description = \" Unknown Mailbox: myusername.RapidEye (Failure)\"; flag = NONEXISTENT; result = no; tagId = 5; }; }"; access = NONEXISTENT; reason = " Unknown Mailbox: myusername.RapidEye (Failure)"; result = 0; }
127.0.0.1 - - [29/Nov/2011:09:50:40 GMT] "POST /SOGo/so/sebastia/Mail//1/foldermyusername/folderRapidEye/headers HTTP/1.1" 200 130/104 7.606 - - -
C[0x66d78388]: 6 logout
S[0x656f6248]: * BYE LOGOUT Requested

and here, when trying to access my cyrus imap:

S[0x6b80a1a8]: OK [CAPABILITY IMAP4rev1 LITERAL+ ID ENABLE STARTTLS AUTH=PLAIN AUTH=OTP AUTH=NTLM AUTH=LOGIN AUTH=GSSAPI AUTH=DIGEST-MD5 AUTH=CRAM-MD5 SASL-IR] communicator.ds9 Cyrus IMAP v2.4.10 server ready
C[0x60f71b08]: 1 login sebastia <PASSWORD>
S[0x6b80a1a8]: 1 OK [CAPABILITY IMAP4rev1 LITERAL+ ID ENABLE ACL RIGHTS=kxte QUOTA MAILBOX-REFERRALS NAMESPACE UIDPLUS NO_ATOMIC_RENAME UNSELECT CHILDREN MULTIAPPEND BINARY CATENATE CONDSTORE ESEARCH SORT SORT=MODSEQ SORT=DISPLAY THREAD=ORDEREDSUBJECT THREAD=REFERENCES ANNOTATEMORE LIST-EXTENDED WITHIN QRESYNC SCAN XLIST URLAUTH URLAUTH=BINARY LOGINDISABLED COMPRESS=DEFLATE IDLE] User logged in SESSIONID=<communicator.ds9-10073-1322556897-1>
C[0x60f71b08]: 2 capability
S[0x6b80a1a8]: CAPABILITY IMAP4rev1 LITERAL+ ID ENABLE ACL RIGHTS=kxte QUOTA MAILBOX-REFERRALS NAMESPACE UIDPLUS NO_ATOMIC_RENAME UNSELECT CHILDREN MULTIAPPEND BINARY CATENATE CONDSTORE ESEARCH SORT SORT=MODSEQ SORT=DISPLAY THREAD=ORDEREDSUBJECT THREAD=REFERENCES ANNOTATEMORE LIST-EXTENDED WITHIN QRESYNC SCAN XLIST URLAUTH URLAUTH=BINARY LOGINDISABLED COMPRESS=DEFLATE IDLE
S[0x6b80a1a8]: 2 OK Completed
C[0x60f71b08]: 3 namespace
S[0x6b80a1a8]: NAMESPACE (("INBOX." ".")) (("user." ".")) (("" "."))
S[0x6b80a1a8]: 3 OK Completed
C[0x60f71b08]: 4 LIST "" ""
S[0x6b80a1a8]: LIST (\Noselect) "." ""
S[0x6b80a1a8]: 4 OK Completed (0.000 secs)
C[0x60f71b08]: 5 select "INBOX.ML.SW.OGo-OOo.OGo.documentation"
S[0x6b80a1a8]: 14 EXISTS
S[0x6b80a1a8]: 0 RECENT
S[0x6b80a1a8]: FLAGS (\Answered \Flagged \Draft \Deleted \Seen KMAILFORWARDED KMAILTODO KMAILWATCHED KMAILIGNORED $FORWARDED $TODO $WATCHED $IGNORED)
S[0x6b80a1a8]: OK [PERMANENTFLAGS (\Answered \Flagged \Draft \Deleted \Seen KMAILFORWARDED KMAILTODO KMAILWATCHED KMAILIGNORED $FORWARDED $TODO $WATCHED $IGNORED *)] Ok
S[0x6b80a1a8]: OK [UIDVALIDITY 1196927517] Ok
S[0x6b80a1a8]: OK [UIDNEXT 15] Ok
S[0x6b80a1a8]: OK [HIGHESTMODSEQ 1] Ok
S[0x6b80a1a8]: OK [URLMECH INTERNAL] Ok
S[0x6b80a1a8]: 5 OK [READ-WRITE] Completed

I see SOGo issuing an empty: LIST "" "" command, to get the right hierarchy separator from the server, but it seems it doesn't take it into account.

switching the NGImap4ConnectionStringSeparator to "/", then I can see the contents of folders in the GMail account:

S[0x6924ae68]: OK Gimap ready for requests from 212.37.172.162 ej4if10081372bkb.44
C[0x63d02c88]: 1 login myusername@mydomain.net <PASSWORD>
S[0x6924ae68]: CAPABILITY IMAP4rev1 UNSELECT IDLE NAMESPACE QUOTA ID XLIST CHILDREN X-GM-EXT-1 UIDPLUS COMPRESS=DEFLATE
S[0x6924ae68]: 1 OK myusername@mydomain.net Sebastian Reitenbach authenticated (Success)
C[0x63d02c88]: 2 capability
S[0x6924ae68]: CAPABILITY IMAP4rev1 UNSELECT IDLE NAMESPACE QUOTA ID XLIST CHILDREN X-GM-EXT-1 UIDPLUS COMPRESS=DEFLATE
S[0x6924ae68]: 2 OK Success
C[0x63d02c88]: 3 namespace
S[0x6924ae68]: NAMESPACE (("" "/")) NIL NIL
S[0x6924ae68]: 3 OK Success
C[0x63d02c88]: 4 LIST "" ""
S[0x6924ae68]: * LIST (\Noselect) "/" "/"
S[0x6924ae68]: 4 OK Success
2011-11-29 10:04:22.809 sogod[2690] <0x0x5df12108[PostgreSQL72Channel]: connection=<0x0x67f01928[PGConnection]: connection=0x0x668f2800>>: message: WARNING: nonstandard use of \ in a string literal
LINE 1: UPDATE sogo_user_profile SET c_settings = '{"folderINBOX...
^
HINT: Use the escape string syntax for backslashes, e.g., E'\'.

C[0x63d02c88]: 5 select "myusername/Logfiles/nagios/srv-nagios"
S[0x6924ae68]: FLAGS (\Answered \Flagged \Draft \Deleted \Seen)
S[0x6924ae68]: OK [PERMANENTFLAGS (\Answered \Flagged \Draft \Deleted \Seen *)] Flags permitted.
S[0x6924ae68]: OK [UIDVALIDITY 659855204] UIDs valid.
S[0x6924ae68]: 587 EXISTS
S[0x6924ae68]: 0 RECENT
S[0x6924ae68]: OK [UIDNEXT 9033] Predicted next UID.
S[0x6924ae68]: 5 OK [READ-WRITE] myusername/Logfiles/nagios/srv-nagios selected. (Success)
C[0x63d02c88]: 6 UID SEARCH NOT DELETED

There you can see, it uses what is set in NGImap4ConnectionStringSeparator and it just works.

I tried to reconfigure my cyrus imapd to turn on useunixhierarchysep: 1
but then, it seems all installed sieve filter did not worked anymore, I'd have to redo all filters for all users, so its unfortunately kind of a no-go.

So, it seems, probably the bug report should be renamed, and made an enhancement request, sth. like: drop NGImap4ConnectionStringSeparator, in favor to automatically retrieve and use hierarchy separator from the IMAP server per account.