Check out the latest update to ghettoVCB which now support backup logs to be emailed upon competition. This feature is in experimental support and require the availability of nc (netcat) utility which is included in ESX(i) 4.0+. One can utilize netcat for variety of networking tasks, including communicating to an email server. The reason this feature is in experimental support is it may not be compatible with all email servers. The email functionality has been tested against a default installation of Postfix and is provided as-is.
For more details, please take a look at the ghettoVCB documentation.