Last year we missed our window to upgrade from zimbra 5 to 6 due to problems with the perl SOAP APIs that don't work well.
This year, we have no choice but to upgrade and will go from zimbra 5 to 7. However, we are still having issues with the perl SOAP APIs.
We've had not problems with Zimbra 5, however, with Zimbra 7 we are seeing the following:
When a request succeeds, we get what seems to be a truncated XML:
'_content' => '<',
However, if the request fails (ie try to create an account that already exists), we get a proper XML back.
We are using the perl modules that are installed in /opt/zimbra/zimbramon/lib