[RCU] too many connections

2012-08-15 Thread Thomas Schober

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 ?


Regards
Thomas
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Re: [RCU] too many connections

2012-08-15 Thread Claudio Kuenzler
On Wed, Aug 15, 2012 at 10:41 AM, Thomas Schober
thomas.scho...@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
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Re: [RCU] too many connections

2012-08-15 Thread A.L.E.C
On 08/15/2012 10:41 AM, Thomas Schober wrote:
 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 ?

No. What's the limit? To workaround this You can use imapproxy or to
disable some parallel request You can:
- disable displaying of images below the message
- disable displaying HTML messages

-- 
Aleksander 'A.L.E.C' Machniak
LAN Management System Developer [http://lms.org.pl]
Roundcube Webmail Developer  [http://roundcube.net]
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Re: [RCU] too many connections

2012-08-15 Thread Reindl Harald


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





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