Should we allow email invitations sent to an email address to be used with another?
Let's say I have a SaaS platform, like a B2B platform where there are company accounts.
In this platform users can invite other users to join the company account by sending them an invitation link in an email with a secure token (à la Google Drive or GitHub).
Should we then let the invited user subscribe using a different email from the one where they received the invitation ?
That question regards primarily UX experience, although some security concerns might also be raised (I couldn't find a more appropriate site for that kind of questions).