Cyrus tweaks (slow on roundcube)

Andrew Morgan morgan at
Fri Sep 11 16:03:04 EDT 2015

I use imapproxy with Horde Webmail here.  Assuming the proxy is using 
cached connections instead of making a new connection each click, then I 
would look into performance problems within Cyrus itself.  It would be 
interesting to see what IMAP commands Roundcube is issuing to Cyrus. 
Perhaps it is doing something "stupid" like retrieving all the message 
bodies on each click?

If you haven't already, try enabling telemetry logging for a single user 
and check the telemetry log files.  If you can post some of those logs 
here, we may be able to identify the problem.


On Fri, 11 Sep 2015, signaldeveloper at wrote:

> I tried imapproxy. It is the same speed. And again, definitely not hardware related.
> I see in the logs in queries the proxy and that works fine but not sure why it's still the same speed.
> - Paul
>> On Sep 11, 2015, at 2:47 PM, Andrew Morgan <morgan at> wrote:
>>> On Thu, 10 Sep 2015, signaldeveloper at wrote:
>>> Is there some type of log I can provide from Cyrus / sasl to help diagnose this better to the kolab guys? Other kolab guys I know say their entropy is right where I'm at and they aren't experiencing these slowness issues.
>>> Are their sasl or Cyrus logs I can provide?
>> Maybe I missed this detail earlier in the thread, but why not run an IMAP proxy to reduce the rate of new connections to Cyrus?  Making a new IMAP connection with every click seems abusive! :)
>>    Andy

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