I'm pretty sure I've implemented this in Asterisk once, years ago, but Asterisk is a real pain.
Kudos for seeing it through.
Edit: Oh, right, I was assuming you asked for an oauth token to my mailbox, but forwarding makes more sense
We provide an email address, you create some filters, and any incoming message will be read to you.
Feel free to ask if you have more questions!
Edit: works - now let's see if I'm charged
I'm pretty sure I've implemented this in Asterisk once, years ago, but Asterisk is a real pain.
Kudos for seeing it through.
Edit: Oh, right, I was assuming you asked for an oauth token to my mailbox, but forwarding makes more sense