Having difficulty with a group email

Having difficulty with a group email

Hi all,

I set up a group email for my organization, and set the membership settings to "Private."  I then added several people.  At least one of them got an add confirmation.

However, when I send an email to the group email, no one gets the email.  Additionally, when I try to change someone's role from Member to Moderator, I get this error:

User(s) "[email]" may not belong to this organization, kindly check and try again
With "[email]" being the email I tried to promote to Moderator.

Any ideas?

Thanks!