Yes, from the python side of things there are tools like py03 that make integrating rust into python code really painless.
I have a sql parsing library (shameless plug) that is 50x faster than any other python implementation, it is just a super simple wrapper around a rust crate.
For email you can import your gmail account via IMAP to fastmail. I have a custom domain so it's been awesome to finally serve mail from it and a relatively painless transition.