SSL Certificate

Ken Smith kens at
Fri Nov 25 09:46:12 EST 2016

Hi All,

Been using Cyrus IMAP for over a decade and very happy.

I wonder if someone can shine some light on a SSL puzzle. I'm trying to 
use a free startssl certificate with Cyrus 2.3.16 on a Centos 6 system

I have configured other startssl certificates the same way on other 
Cyrus/Centos 6  instances I have, but on this one I get this error

  unable to get certificate from 

I've checked the permissions settings, selinux happens to be turned off 
on this machine,  its a VPS.

After poking around without success and my checks with openssl on the 
certificate etc etc, as a test I set up the cert, key and root cert on 
Apache on a test Centos 6 machine. Apache starts and connects with SSL 
without issue, except the server name is wrong of course. But testing 
the port 443 SSL connection gives the expected certificate details and 
the certification chain back to startssl's root certificate.  So what is 
Cyrus needing / doing that Apache is not bothered about?

Any ideas / pointers gratefully received.


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