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<p>Thank you for everybody for the guidance.... so the solution.</p>
<p>Reviewing the logs showed that curl was having a DNS issue and timing out before presumably falling back to a secondary lookup (as the application was still working - but slow). Hunting around the network identified a failed DNS server ... restoring the server resulted in a dramatic improvement to Kolab. Not sure why DNS was required to open emails, but this certainly seems to have corrected the issue. Thank you again for all the assistance.</p>
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<p>On 21/12/2015 20:56, Andy Kopciuch wrote:</p>
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<div class="pre" style="margin: 0; padding: 0; font-family: monospace">On Monday December 21 2015 11:13:25 Young, Marcus wrote:
<blockquote type="cite" style="padding: 0 0.4em; border-left: #1010ff 2px solid; margin: 0">Hi All,<br /> <br /> we have been testing Kolab as a replacement for Zimbra. The main issue<br /> we have is that the interface (Roundcube) is really really slow - almost<br /> unusable. When clicking on an email to view it can take upwards of 20<br /> seconds to display. I assume that there is a configuration issue - but I<br /> have no idea where to look. I have worked through a number of "fixes"<br /> such as<br /> </blockquote>
<br /> <br /> There could be lots of different things causing this in your particular setup.<br /> <br /> - How many users experience this, or is it only you?<br /> - How many users in total, and how many simultaneous users (how high is the <br /> server load)?<br /> - Is the slowness only in roundcube, are IMAP operations with other clients <br /> operating normally?<br /> - Is the slowness in all folders, and all messages, or only particular folders <br /> and/or messages.<br /> - How is roundcube configured to connect to IMAP?<br /> - Is the webmail over http:// or https://<br /> - Is this limited to one particular browser, or all browsers?<br /> - Is this connecting on an internal network, or public IP?<br /> - Is the DNS, hostname, etc. configured properly?<br /> - Is this a virtual server? Or physical hardware? What kind of hardware / <br /> CPU, Memory, etc.<br /> <br /> <br /> The last deployment I did a few months ago was ubuntu 14.04, and it has been <br /> running without issue.<br /> <br /> <br /> <br /> Andy<br /> _______________________________________________<br /> users mailing list<br /> <a href="mailto:users@lists.kolab.org">users@lists.kolab.org</a><br /> <a href="https://lists.kolab.org/mailman/listinfo/users">https://lists.kolab.org/mailman/listinfo/users</a></div>
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<div>-- <br />
<div><strong><span style="font-size: small;">Director, Research and Development, Incarta IT</span></strong><br /><span style="font-size: small;">Email: marcus@incarta.com.au</span><br /><span style="font-size: small;">Web: http://www.incarta.com.au/</span><br /><span style="font-size: small;">Corporate: +61 3 <span style="color: #333333; font-family: monospace; font-size: 13.3333330154419px; background-color: #fdfdfd;">9729 4899</span> / 1300 137 557 </span><br /><span style="font-size: small;">Mobile: + 61 419 554 213</span></div>
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