The crashmailbatch supports sending emails via smpt options, but not via sendmail. On the crashmail it's the other way around. I'd like to use crashmailbatch with sendmail, but this is currently not supported.
It would be nice, if all the commands extend 'ProcessStateEmailMonitor' and 'ProcessStateEmailMonitor' supports a sendmail as default. The behavior can be overwritten by the open parameters --smtp-*.