If you receive this error message, it is possible that the email domain may not be recognized by our system. Our Developers are investigating these matters on a case-by-case basis; we would ask that you reach out to us when this occurs and provide us your Grantmaking Site URL along with the email address of the affected grantee so we can investigate further.

As of today, 10/2/2018, the following domains will cause this issue:

.ngo