On 28 Jan 2014, at 00:01, Stan Hoeppner stan@hardwarefreak.com wrote:
On 1/27/2014 1:06 PM, List wrote:
We are hosting a webmail service using roundcube 0.8.1 and a number of our users with inboxes in excess of 8000-10000 messages are experiencing
"Inbox" folder has 8-10K, or the entire mailbox including subfolders has 8-10K messages?
extremely slow response times (We also downloaded a recent copy and it's just as slow). We are using Dovecot 2.1 as the IMAP server and have not had any issues with clients like outlook or Thunderbird, but as far as we understand it those clients keep a local copy of the messages for quick retrieval while Roundcube is doing everything over IMAP. Is there any thing we can do or should look at to improve the response times for loading an inbox with many thousands of messages?
What do you mean "loading" an inbox? Are you referring to initialization just after logon, where new message notifications get displayed on the folder tree? Or do you mean simply clicking on the "Inbox" folder?
How many rows per page are these users displaying? This is user configurable. If the value is high things will be slower.
Check the sort mode of these users. My guess is that they're sorting on something that your imap server does not index. So even if you're only showing 25 emails, the imap server needs to check and sort them all.
Cor