[Dovecot] SSL with startssl.com certificates

[Dan Langille]

On 2013-09-13 10:18, Dan Langille wrote:
> On 2013-09-13 09:18, Oscar del Rio wrote:
> On 09/13/13 07:59 AM, Dan Langille wrote:
> I'm using Dovecot 2.2.5.  I'm setting up and new IMAPS server for 
> personal use (i.e. only me).
> 
> I have success with self-signed certificates but not with others (e.g. 
> StartSSL.com)
> 
> /usr/local/etc/ssl/imaps.unixathome.org.crt contains only the cert 
> issued by StartSSL
> 
> 
> Maybe you are missing some of the certificate chain.
> http://wiki2.dovecot.org/SSL/DovecotConfiguration
> "Chained SSL certificates"
> 
> I tried that yesterday and it seemed to make no difference.
> My attempts were based on
> http://openssl.6102.n7.nabble.com/check-certificate-chain-in-a-pem-file-td43871.html
> 
> Perhaps I am doing the chain incorrectly.  I just tried again.  The
> server is now set up with the following:
> 
> I have three certs in this chain file:
> 
> cat imaps.unixathome.org.pem sub.class1.server.ca.pem ca.pem > 
> testing.chain.pem
> 
> 1 - the certificate issued by startssl for my server
> 2 & 3 - the PEM files for StartSSL as found at 
> http://www.startssl.com/certs/

The following test seems to indicate I have SSL configured correctly:

http://www.sslshopper.com/ssl-checker.html#hostname=imaps.unixathome.org:993

A similar test from http://www.digicert.com/help/ does not find an 
issue.

Even better, this test shows the certs it finds: 
http://certlogik.com/ssl-checker/

Not sure what to conclude yet.