No, but there is a workaround:
Instead of using the inbuilt options for sending E-Mail use the execute file action.
With that you can start a batch file that packs all required recordings into a single .zip file for example and then sends them with a simple commandline tool (just google for something like "smtp commandline tool").

Of course this is not an official solution and it definitely requires some tinkering but I'm sure you'll figure it out and get it working :)

EDIT: Typo ;)