Yesterday afternoon a mass mail from Admissions caused many providers such as Yahoo, SBC, Gmail, and others to either rate control mail from UIS or block it all together (blacklist). We were also added to the spam list at Spamhaus. We were able to get the situation under control, and route UIS mail out via a different server. We have also taken steps to get ourselves de-listed from the necessary agencies. To the best of our knowledge, no mail was lost in this process, but there were delays – some delays were quite long – in outgoing mail until approximately 7PM last night.