No, but in H3 the sidebar is not reloaded with every page request. For 
further questions please use the mailing list.

I disable the poll of mailboxes of H4 and the sidebar is now quickly.

but why there is no problem in H3 with the same imap serveur?   is it 
a problem imap php lib ?


Best regards

Dominique

Ok, I tried to change the config for a test

but with the horde H3, the same configuration (I poll all my mailboxes 
for unseen messages) and the same imap serveur there is no problem

Best regards

Then don't poll all your mailboxes for unseen messages.  This can take 
a long time on the IMAP server.  Nothing we can do about that.

Hello

   I passed my horde in debug mode, and I this that during the 15s  :

first the horde IMP make the list of all my boxes

(1305311846.8182) S: * OK [XPROXYREUSE] IMAP connection reused by imapproxy
(1305311846.8570) S: 1 OK User logged in
(1305311846.8571) C: 2 CAPABILITY
(1305311846.8973) S: * CAPABILITY IMAP4 IMAP4rev1 LITERAL+ ID 
LOGINDISABLED ACL RIGHTS=kxte QUOTA MAILBOX-REFERRALS NAMESPACE 
UIDPLUS NO_ATOMIC_RENAME UNSELECT CHILDREN MULTIAPPEND BINARY SORT 
SORT=MODSEQ THREAD=ORDEREDSUBJECT THREAD=REFERENCES ANNOTATEMORE 
CATENATE CONDSTORE IDLE LISTEXT LIST-SUBSCRIBED X-NETSCAPE URLAUTH
(1305311846.8976) S: 2 OK Completed
(1305311846.8978) C: 3 NAMESPACE
(1305311846.9373) S: * NAMESPACE (("INBOX." ".")) (("user." ".")) (("" "."))
(1305311846.9374) S: 3 OK Completed
(1305311847.2571) C: 4 LOGOUT
(1305311847.2933) S: * BYE LOGOUT received
(1305311847.2934) S: 4 OK Completed

------------------------------
(1305311848.9967) S: * OK [CAPABILITY IMAP4 IMAP4rev1 LITERAL+ ID   
XIMAPPROXY] imap.utbm.fr Cyrus IMAP4 v2.3.7-Invoca-RPM-2.3.7-7.el5_4.3 
server ready
(1305311849.0114) C: [LOGIN Command - username: ddalpont]
(1305311849.0116) S: * OK [XPROXYREUSE] IMAP connection reused by imapproxy
(1305311849.0495) S: 1 OK User logged in
(1305311849.0497) C: 2 LIST "" INBOX.*


after that IMP explore all my maiboxes to calculated the number of 
total mail and unseen mail

(1305311947.1784) C: 4 STATUS INBOX.0_metaliste (MESSAGES RECENT UNSEEN)
(1305311947.2174) S: * STATUS INBOX.0_metaliste (MESSAGES 100 RECENT 0 
UNSEEN 38)
(1305311947.2176) S: 4 OK Completed
(1305311947.2181) C: 5 STATUS INBOX.0_nouveaux (MESSAGES RECENT UNSEEN)
(1305311947.2574) S: * STATUS INBOX.0_nouveaux (MESSAGES 3 RECENT 0 UNSEEN 3)

and know if there is important but a use imapproxy to connect to my cyrus imap

the cyrus imap run OK whith horde H3 (in another virtuel machine)

best regards

Definitely don't see this.  Sidebar loading is way faster in H4 than H3.

At a minimum, you will need to provide an IMAP log to determine if the 
IMAP server is to blame:

To further debug this issue, we need details of the IMP -> IMAP/POP 
communication.

To enable debugging, see instructions contained in 
imp/config/backends.php (the 'debug' config parameter).

Debugging should not be enabled on a production server,   Attach/post 
only the portion of the log that directly deals with the problem 
reported (it may be simplest to clear the log file and then perform 
the event that causes the error).

With a limited number a mailbox/folder (10) the time of loading is 
correct (immediatly)

In my case,  I have 100 folders the time of loading is 15s

with imp 4, I have no problem with the same imap account

The sidebar menu is very slow (15 seconds)  to finish his loading