There are many reasons you and your team may not be receiving User activation emails and task/deadline emails.
First - please check your users' email addresses in the My Organization area of GrantHub. If you find an error, please follow these steps:
Second - double check your spam or junk folder.
Third - check in with your IT department. Schools and Universities seem to have strong firewalls and do not receive emails from firstname.lastname@example.org. Please send your IT Dept. an email to add our email to the White list or safe sender list. We have found also telling them this verbiage, helps troubleshoot: