Meteor for cross-platform standalone (email screen capture) utility?

I’ve never used meteor before but would it be an appropriate platform for creating a cross-platform (Windows, Mac and Linux) utility that will, when executed, take a screen capture, email the image to a specified @ddress, then display a simple message to let the user know the email has been sent? If so, will I have to include login credentials for the SMTP server? If so, can I encrypt or obfuscate those credentials somehow?