ColdFusion uses SSL services with multiple SSL domains
Perhaps you need to export different certificates for these domains:
Check out this tool, really handy compared to keytool:
There's also a good post here, containing instructions for exporting certificates:
http://www.talkingtree.com/blog/index.cfm?mode=entry&entry=25AA75A4-45A6-2844-7CA3EECD842DB576
a source to share
Are you running each of the web services from a different IP address? You can only run one SSL certificate per IP: http://wiki.apache.org/httpd/NameBasedSSLVHosts
a source to share
I would strongly suggest you get a wildcard certificate for your domain
*. Xyz.de
Then you can use all kinds of combinations on as many servers as you want.
We do it here and have no problem with web services.
Here is the one we are using http://www.digicert.com/wildcard-ssl-certificates.htm
a source to share