Guest user invitation not sent to Gmail account

[Vipul Kelkar]

I added my Gmail account to an Office 365 group but I did not get the invitation email. It worked will my Hotmail account. I do not get any error while adding this Gmail user to the group. Its just that I don't get the invitation email.

I see the Gmail ID from the "Users" in Office 365 admin and also in Azure users but I am not getting the invitation email .

[#2]

This shouldn't be the case, you should receive invitation email. Did you check your spam or other folder?

[#3]

Yes, it ended up as Spam !!