Share Invitiations Not Being Delivered

Hello -

I have tried sharing documents with several different business colleagues - some with corporate firewalls, and some without. IN almost every case, they have had trouble receiving their share invitations. A few found them trapped in their spam filters (hoping you're working on whitelisting).

But several others never received them at all. I then tested the sharing in Sheets in particular and found the same thing when sharing to other email addresses of mine. The delivery rate is less than 50%.

Obviously this is an amazing service and it's still in beta. And it's free. I really appreciate its potential. Big question I have is there any way to generate a Share link I can copy and paste into my own email to send? It would be worth the extra hassle if I could assure delivery.
steve.lefkovits