Do the site certificates need to be recreated, or could a reuse of the already created certificates be implemented? Then we didn't need to re-enter all the information, and certificates that are already installed in our browsers could be used.
I have entered this as feature request in our tracking system, but it will not make it in the 2.2.10 release anymore.
The clamassassin version is the same then in 2.2.9, so I guess it should work even with this error. Did you notice any problems with clamassassin after the installation?