Need help with AppleScript? Or possibly something else?

Everyday I have to email in a daily time sheet made in Microsoft Excel. I fill out my time sheet and click "Email Recipient file" and it opens Mail and I enter in the two email address that I need to send it to. I just started using a new email client called Postbox, which I prefer over Mail. However, I can not "Email recipient file" when my default client is set to Postbox.

Here is my question.

Is it possible to save each daily time sheet in a specific folder and have Hazel automatically email the file? I'm going to assume that I would have to use some sort of script, but I'm unsure.

I was playing around with Hazel and I see that I can make the rule:

Date Created -- is -- today

Run -- Automator/AppleScript/Shell Script

So what do you think the best course would be? Is it possible to write a script that would do this? Or is this wishful thinking? I've never created an AppleScript...

Sorry for my ignorance and I do appreciate any help in this matter, if only to steer me towards something else...

It's up to the app to provide AppleScript or Automator support. If Postbox doesn't have it, then you'll have to bug them about it.

You can also write a script to send an email without going through your email client. That's a bit more complicated though and beyond the support I can give. You'll have to hunt around for that.