All prompts and learning resources will be released on our Discord server, and an invite to it shall be e-mailed to the participants on registration. 
I am adding the following sentence to an official documentation and am quite confused as to how this sentence shall be structured as something about it does not sound good right now.

I google the use of 'whose' for inanimatable objects and got weird answers so could not decide if I could say `...on Discord, whose invite shall be sent...` 
and, I also could not decide if it would make sense to say `an invite to which shall be sent` or an `invitation to which shall be sent` , there are three aspects of this question and I still am quite confused, what is the best way to convey the message?