Email+ uses the vendor SocketLabs to deliver emails. Each 'from address' domain needs to be approved and set up by Tech Services before an email can be sent from that domain. The following domains will not be approved for 'from addresses' in Email+:
mx.uillinois.edu
ad.uillinois.edu
Request an alias
Contact your local IT support team to request an email alias that points to your AD or MX record.