Once an Admin has clicked on the Admin tab, navigate to the Teachers sub-tab.
Select the 3 action dots on the right side of the screen for that teacher.
Choose the option that says Resend Invite.
If the teacher's email system is blocking the email, the admin can select the 3 action dots on the right side of the screen for that teacher and choose the 'Reset Password' option. The new teacher will be able to login with that password and complete the new teacher onboarding process.