The MX record on DNS zones was changed to mx00.ups.edu and mx01.ups.edu in an effort to normalize the naming convention for our mail exchange servers. This change resulted in some mail delivery problems since not also external mail servers picked up the change in a timely manner. A workaround was implemented to allow mail delivery to continue. Mail messages sent between 10:00am and 11:45am (-8:00 PST) seem to have been effected.