On Wed, Aug 15, 2012 at 10:41 AM, Thomas Schober thomas.schober@gmail.comwrote:

Hi,

i have the following problem.

I encounter issues for connecting to the imap server. The message "Could not connect to IMAP server" is issued sometimes. I already wrote a ticket to my hoster and he said, that my client is opening too many connections to the imap server and so some of them get blocked. Is there a possibility in the roundcube configuration, where i can configure that only one connection is used ?

afaik this has to be done on the server side, e.g. with imapproxy.

Regards Thomas ______________________________**_________________ Roundcube Users mailing list users@lists.roundcube.net http://lists.roundcube.net/**mailman/listinfo/usershttp://lists.roundcube.net/mailman/listinfo/users

Am 15.08.2012 10:41, schrieb Thomas Schober:

I encounter issues for connecting to the imap server. The message "Could not connect to IMAP server" is issued sometimes. I already wrote a ticket to my hoster and he said, that my client is opening too many connections to the imap server and so some of them get blocked. Is there a possibility in the roundcube configuration, where i can configure that only one connection is used?

you may minimize the IMAP connections with "imapproxy" on the webserver and configure roundcube using 127.0.0.1, this would lead in only one conection per user to the "real server"

if there are many different users this may not help and your hoster have to overthink his limits - they seem to be not the smartest because they would also making trouble if some clients are behind the same NAT network and for IMAp you have to calculate in the worst case 1 connection per folder and client

so if you have 10 users behind a NAt and each of them has 10 folders you need up to 100 IMAp connections from the same IP - that is how IMAp works